APA aipamena

Houston, C. S. (1977). Sir John Richardson: Arctic Explorer, Natural Historian, Naval Surgeon.

Chicago Style aipamena

Houston, C. Stuart. Sir John Richardson: Arctic Explorer, Natural Historian, Naval Surgeon. 1977.

MLA aipamena

Houston, C. Stuart. Sir John Richardson: Arctic Explorer, Natural Historian, Naval Surgeon. 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.