@book{12416,
	author = {United States. and Thompson, Ross C. and United States.},
	title = {Commercial growing of asparagus},
	publisher = {U.S. Dept. of Agriculture; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,},
	year = {1968]},
	series = {Farmer's bulletin no. 2232},
	address = {Washington]},
	note = {Supersedes Asparagus culture, by R. C. Thompson, issued as Farmers' bulletin no. 1646.}
}