APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.