APA Citation

Nelson, F. W., & Howard, D. S. (1986). Trace element analysis of obsidian artifacts from el mirador, Guatemala. Provo, Utah: New World Archaeological Foundation.

Chicago Style Citation

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

MLA Citation

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

Warning: These citations may not always be 100% accurate.