Cita APA (7a ed.)
Graham, I. (1967). Archaeological explorations in El Peten, Guatemala. Middle American Research Institute, Tulane University.
Cita Chicago Style (17a ed.)
Graham, Ian. Archaeological Explorations in El Peten, Guatemala. New Orleans: Middle American Research Institute, Tulane University, 1967.
Cita MLA (9a ed.)
Graham, Ian. Archaeological Explorations in El Peten, Guatemala. Middle American Research Institute, Tulane University, 1967.
警告：這些引文格式不一定是100％准確.