Cita APA (7a ed.)

Coe, W. R. (1959). Piedras Negras archaeology: Artifacts, caches, and burials. University Museum, University of Pennsylvania.

Cita Chicago Style (17a ed.)

Coe, William R. Piedras Negras Archaeology: Artifacts, Caches, and Burials. Philadelphia: University Museum, University of Pennsylvania, 1959.

Cita MLA (9a ed.)

Coe, William R. Piedras Negras Archaeology: Artifacts, Caches, and Burials. University Museum, University of Pennsylvania, 1959.