APA (7th ed.) Citation

Cooper, J. D. (1986). A Trip Through Time: Principle Of Historical Geology. Merril Publishing Company.

Chicago Style (17th ed.) Citation

Cooper, John D. A Trip Through Time: Principle Of Historical Geology. Merril Publishing Company, 1986.

MLA (8th ed.) Citation

Cooper, John D. A Trip Through Time: Principle Of Historical Geology. Merril Publishing Company, 1986.

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