APA (7th ed.) Citation

Lemon, R. R. (1993). Vanished worlds: An introduction to historical geology. Wm. C. Brown Publishers.

Chicago Style (17th ed.) Citation

Lemon, Roy R. Vanished Worlds: An Introduction to Historical Geology. Iowa: Wm. C. Brown Publishers, 1993.

MLA (9th ed.) Citation

Lemon, Roy R. Vanished Worlds: An Introduction to Historical Geology. Wm. C. Brown Publishers, 1993.

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