Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Cowgill, U. M., & Hutchinson, G. E. (1969). A chemical and mineralogical examination of the ceramic sequence from Tikal, El Peten, Guatemala. - New Haven, CT.

Chicago Citation Edition Citation

Cowgill, Ursula M., und G. E. Hutchinson. A Chemical and Mineralogical Examination of the Ceramic Sequence from Tikal, El Peten, Guatemala. - New Haven, CT. 1969.

MLA Citation Edition Citation

Cowgill, Ursula M., und G. E. Hutchinson. A Chemical and Mineralogical Examination of the Ceramic Sequence from Tikal, El Peten, Guatemala. - New Haven, CT. 1969.