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Platt, Franklin T- The Geology of Blair County / by Franklin Platt , 1881 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico Platt, Franklin HH - Report of Progress in the Cambria and Somerset District of the Bituminous Coal-Fields of Western Pennsylvania - 1875 - pt. 1. *Cambria / by F. and W. G. Platt , 1877 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico Platt, Franklin HHH - Report of progress in the Cambria and Somerset District of the Bituminous Coal-Fields of Western Pennsylvania - 1876 - part 2. *Somerset / by F. and W. G. Platt , 1877 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico Platt, Franklin L - Special Report on the Coke Manifacture of the Yuoghiogheny River Valley in Fayette and Westmoreland Counties - with geological notes of the Coal and Iron Ore Beds / by Franklin Platt ; from surveys by Charles A. Young ; to which are appended a Report on methods of Coking by John Fulton and a Report on the Use of Natural Gas in the Iron Manufacture by John B. Pearse and Franklin Platt , 1876 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico Platt, Franklin A2 - A special report to the legislature upon the Causes, Kinds and Amount of Waste in Mining Anthracite - January, 1881 / by Franklin Platt ; with a chapter on the methods of mining by John Price Wetherill , 1881 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico Platt, Frederick America's gilded age - its architecture and decoration / Frederick Platt South Brunswick ; New York - A. S. Barnes and Company ; London - T. Yoseloff, c1976 Testo Monografico Platt, Jennifer A history of sociological research methods in America - 1920-1960 / Jennifer Platt Cambridge - Cambridge university press, 1996 Testo Monografico Platt, Raye R. Finland and its geography - an American Geographical Society handbook / Raye R. Platt London - Methuen, (1957) Testo Monografico Platt, Robert S. Field study in American geography - the development of theory and method exemplified by selections / by Robert S. Platt Chicago, Ill. - The university of Chicago, Department of geography, 1959 Testo Monografico Platt, Robert S. Latin America - countrysides and United regions / by Robert S. Platt New York ; London - McGraw-Hill book company, 1942 Testo Monografico Platt, Robert S. Latin America - countrysides and United regions / by Robert S. Platt New York ; London - McGraw-Hill book company, 1942 Testo Monografico Platt, Robert S. Latin America - countrysides and united regions / Robert S. Platt New York ; London - McGraw-Hill, c.1948 Testo Monografico Platt, Robert S. Latin America - countrysides and United regions / Robrt S. Platt Testo Monografico Platt, Rutherford The great american forest / by Rutherford Platt Englewood Cliffs, N.J. - Prentice-Hall, c1965 Testo Monografico Platt, William G. H5 - Report of progress in Armstrong County - 1879 / by W. G. Platt , 1880 Incluso in > Second Geological Survey of Pennsylvania- report of progress Testo Monografico