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

APA Zitierstil

Nelson, F. W., & Howard, D. S. (1986). Trace element analysis of obsidian artifacts from El Mirador, Guatemala. Provo-UT: New World Archaeological Foundation.

Chicago Zitierstil

Nelson, Fred W., and David S. Howard. Trace Element Analysis of Obsidian Artifacts From El Mirador, Guatemala. Provo-UT: New World Archaeological Foundation, 1986.

MLA Zitierstil

Nelson, Fred W., and David S. Howard. Trace Element Analysis of Obsidian Artifacts From El Mirador, Guatemala. Provo-UT: New World Archaeological Foundation, 1986.