Onley, Derek J., Identification of seabirds of the southern ocean : a guide for scientific observers aboard fishing vessels / Derek Onley and Sandy Bartle. - 81 pages : colour illustrations ; 24 cm Includes bibliographical references (pages 74-78). ISBN: 0909010471 9780909010478 Subjects--Topical Terms: Sea birds--Identification.--Antarctic Ocean Dewey Class. No.: 598.17709989