@book{31732,
	author = {Whitney, Milton and United States. and United States.},
	title = {Field Operations of the Bureau of Soils, 1901. ( third report.) By Milton Whitney, chief, with accompanying papers by assistants in charge of field parties /},
	publisher = {Gov. Printing Office.},
	year = {1902.},
	series = {House document / 57th Congress,  1st session. House ;},
	address = {Washington, DC :}
}