APA (7e ed.) Bronvermelding

Silverberg, R. (1966). Forgotten by time: A book of living fossils. Thomas Y. Crowell.

Chicago (17e ed.) Bronvermelding

Silverberg, Robert. Forgotten by Time: A Book of Living Fossils. New York: Thomas Y. Crowell, 1966.

MLA (8e ed.) Bronvermelding

Silverberg, Robert. Forgotten by Time: A Book of Living Fossils. Thomas Y. Crowell, 1966.