Παραπομπή APA

Dept. of Agriculture. (1968). Science for better living. [Washington: For sale by the Supt. Docs., U.S. Govt. Print. Off..

Παραπομπή Chicago Style

Dept. of Agriculture. Science for Better Living. [Washington: For sale by the Supt. Docs., U.S. Govt. Print. Off., 1968.

Παραπομπή MLA

Dept. of Agriculture. Science for Better Living. [Washington: For sale by the Supt. Docs., U.S. Govt. Print. Off., 1968.

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