APA (7th ed.) Citation

Easton, W. H. (1960). Invertebrate paleontology. Harper.

Chicago Style (17th ed.) Citation

Easton, William Heyden. Invertebrate Paleontology. New York: Harper, 1960.

MLA (9th ed.) Citation

Easton, William Heyden. Invertebrate Paleontology. Harper, 1960.

Warning: These citations may not always be 100% accurate.