Παραπομπή APA

Dept. of Agriculture. (1967). Outdoors USA. [Washington: The United States Government Printing Office.

Παραπομπή Chicago Style

Dept. of Agriculture. Outdoors USA. [Washington: The United States Government Printing Office, 1967.

Παραπομπή MLA

Dept. of Agriculture. Outdoors USA. [Washington: The United States Government Printing Office, 1967.

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