APA (7th ed.) Citation

Shepard, F. P. (1968). The earth beneath the sea (rev. ed., reprinted.). Atheneum.

Chicago Style (17th ed.) Citation

Shepard, Francis Parker. The Earth Beneath the Sea. rev. ed., reprinted. New York: Atheneum, 1968.

MLA (9th ed.) Citation

Shepard, Francis Parker. The Earth Beneath the Sea. rev. ed., reprinted. Atheneum, 1968.