APA aipamena

Civilian Conservation Corps (U.S.). Company 1640. Twin Hill billy. Company 1640.

Chicago Style aipamena

Civilian Conservation Corps (U.S.). Company 1640. Twin Hill Billy. Port Angeles, Wash.: Company 1640.

MLA aipamena

Civilian Conservation Corps (U.S.). Company 1640. Twin Hill Billy. Company 1640.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.