Coe, William R..
Tikal the north acropolis and an early tomb.
- Pennsilvania-US : Univesity of Pennsylvania, 1963..
- páginas 24-33 : ilustraciones blanco y negro
- Trimenstral
- Vol.5, no 2 (1963)
- Expedition. the bulletin of the university museum of the university of pennsilvania ; no. 2 .
- University of Pennsylvania. .