(1991). Oceans and islands: The encyclopedia of the earth. Smithmark.
Chicago Style aipamenaOceans and Islands: The Encyclopedia of the Earth. New York, N.Y: Smithmark, 1991.
MLA aipamenaOceans and Islands: The Encyclopedia of the Earth. Smithmark, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.