APA aipamena

Kennedy, W., Cobban, W., Elder, W., & Kirkland, J. (1999). Lower Turonian (Upper Cretaceous) Watinoceras devonense Zone ammonite fauna in Colorado, USA.

Chicago Style aipamena

Kennedy, W., W. Cobban, W. Elder, and J. Kirkland. Lower Turonian (Upper Cretaceous) Watinoceras Devonense Zone Ammonite Fauna in Colorado, USA. 1999.

MLA aipamena

Kennedy, W., et al. Lower Turonian (Upper Cretaceous) Watinoceras Devonense Zone Ammonite Fauna in Colorado, USA. 1999.