Tikal reports, numbers 11 :
Map of the ruins of Tikal, El Peten, Guatemala /
[by] Robert F. Carr and James E. Hazard.

APA Citation

Carr, R. F., Hazard, J. E. (1961). Tikal reports, numbers 11: Map of the ruins of Tikal, El Peten, Guatemala. Philadelphia: The University Museum, University of Pennsylvania.

MLA Citation

Carr, Robert F, and James E Hazard. Tikal Reports, Numbers 11: Map of the Ruins of Tikal, El Peten, Guatemala. Philadelphia: The University Museum, University of Pennsylvania, 1961.

Warning: These citations may not always be complete (especially for serials).