Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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

Precaución: Estas citas no son 100% exactas.