APA aipamena

Ong, W. J. (1952). Canals in Amsterdam, Netherlands.

Chicago Style aipamena

Ong, Walter J. Canals in Amsterdam, Netherlands. 1952.

MLA aipamena

Ong, Walter J. Canals in Amsterdam, Netherlands. 1952.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.