@book{7823,
	author = {Wahnschaffe, Felix and Braunt, William Theodore,},
	title = {A guide to the scientific examination of soils;},
	publisher = {H.C. Baird & co.,},
	year = {1892.},
	address = {Philadelphia,},
	note = {For German edition see his Auleitung zur wissenschaftlichen bodenuntersuchung. 395W12A},
	url = {http://hdl.loc.gov/loc.gdc/scd0001.00026727492}
}