Sverdrup, Keith A. , An introduction to the world's oceans / Keith A. Sverdrup, E.Virginia Armbrust. - 9th ed. - xx, 521 pages : color illustrations ; 29 cm. ISBN: 0072827017 9780072827019 Subjects--Topical Terms: Oceanography --Textbooks. LC Class. No.: GC11.2 / .S93 2008