Cita APA (7a ed.)
Walker, K. R., & Thomas W., B. (1985). Laboratory exercoses in historical geology. Hunter Textbooks.
Cita Chicago Style (17a ed.)
Walker, K. R., y Broadhead Thomas W. Laboratory Exercoses in Historical Geology. North Carolina: Hunter Textbooks, 1985.
Cita MLA (9a ed.)
Walker, K. R., y Broadhead Thomas W. Laboratory Exercoses in Historical Geology. Hunter Textbooks, 1985.
Precaución: Estas citas no son 100% exactas.