APA

Piña Chan R., Navarrete C., . (1967). Archeological research in the lower Grijalva river region, Tabasco and Chiapas. Provo: New World Archaeological Foundation.

Chicago

Piña Chan Román, Navarrete Carlos, . 1967. Archeological research in the lower Grijalva river region, Tabasco and Chiapas. Provo: New World Archaeological Foundation.

Harvard

Piña Chan R., Navarrete C., . (1967). Archeological research in the lower Grijalva river region, Tabasco and Chiapas. Provo: New World Archaeological Foundation.

MLA

Piña Chan Román, Navarrete Carlos, . Archeological research in the lower Grijalva river region, Tabasco and Chiapas. Provo: New World Archaeological Foundation. 1967.