Παραπομπή APA

Shepard, F. P. (1977). Geological oceanography. Crane, Russak & company inc.

Παραπομπή Chicago Style

Shepard, Francis P. Geological Oceanography. New York: Crane, Russak & company inc, 1977.

Παραπομπή MLA

Shepard, Francis P. Geological Oceanography. Crane, Russak & company inc, 1977.