APA (7th ed.) Zitazioa

Graham, S. Tramping With a Poet in the Rockies.

Chicago Style (17th ed.) Zitazioa

Graham, Stephen. Tramping With a Poet in the Rockies.

MLA (9th ed.) Zitazioa

Graham, Stephen. Tramping With a Poet in the Rockies.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.