@book{8097,
	author = {United States.},
	title = {Instructions for making forest surveys and maps.},
	publisher = {Govt. Print. Off.,},
	year = {1912.},
	address = {Washington,},
	edition = {Revised December, 15, 1911. Prepared in the Office of Geography.},
	note = {At head of title: United States Department of Agriculture, Forest Service.}
}