United States. Dept. of Agriculture. (1968). Science for better living. For sale by the Supt. of Docs., U.S. Govt. Print. Off..
芝加哥风格引文United States. Dept. of Agriculture. Science for Better Living. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968.
MLA引文United States. Dept. of Agriculture. Science for Better Living. For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1968.
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