APA
Pickard G. L., Pergamon Press, . (1975). Descriptive physical oceanography: an introduction. Oxford [etc.]: Pergamon Press.
Chicago
Pickard George L, Pergamon Press, . 1975. Descriptive physical oceanography: an introduction. Oxford [etc.]: Pergamon Press.
Harvard
Pickard G. L., Pergamon Press, . (1975). Descriptive physical oceanography: an introduction. Oxford [etc.]: Pergamon Press.
MLA
Pickard George L, Pergamon Press, . Descriptive physical oceanography: an introduction. Oxford [etc.]: Pergamon Press. 1975.