@book{12423,
	author = {Walrath, Arthur J. and Gibson, W. L. and Virginia Polytechnic Institute, Blacksburg.},
	title = {The evaluation of investment opportunities;},
	publisher = {U.S. Dept. of Agriculture, Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,},
	year = {1968]},
	series = {Agriculture handbook no. 349},
	address = {Washington]},
	note = {Cover title.}
}