APA

Briggs P., . (1971). 200,000,000 years beneath the sea. New York: Holt, Rinehart and Winston.

Chicago

Briggs Peter, . 1971. 200,000,000 years beneath the sea. New York: Holt, Rinehart and Winston.

Harvard

Briggs P., . (1971). 200,000,000 years beneath the sea. New York: Holt, Rinehart and Winston.

MLA

Briggs Peter, . 200,000,000 years beneath the sea. New York: Holt, Rinehart and Winston. 1971.