APA (7th ed.) Zitazioa

Ripley, S. D. A Synopsis of the Birds of India and Pakistan: Together with those of Nepal , Sikkim, Bhutan and Ceylon.

Chicago Style (17th ed.) Zitazioa

Ripley, Sidney Dillon. A Synopsis of the Birds of India and Pakistan: Together with Those of Nepal , Sikkim, Bhutan and Ceylon.

MLA (9th ed.) Zitazioa

Ripley, Sidney Dillon. A Synopsis of the Birds of India and Pakistan: Together with Those of Nepal , Sikkim, Bhutan and Ceylon.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.