Munch, P. A. (1964). Caves on the island of Tristan da Cunha.
Chicago Style aipamenaMunch, Peter Andreas. Caves on the Island of Tristan Da Cunha. 1964.
MLA aipamenaMunch, Peter Andreas. Caves on the Island of Tristan Da Cunha. 1964.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.