Cita APA (7a ed.)
Clewlow, W. C. (1967). Colossal heads of the Olmec culture. University of California Archaeological Research Facility.
Cita Chicago Style (17a ed.)
Clewlow, William C. Colossal Heads of the Olmec Culture. Berkeley: University of California Archaeological Research Facility, 1967.
Cita MLA (9a ed.)
Clewlow, William C. Colossal Heads of the Olmec Culture. University of California Archaeological Research Facility, 1967.
警告：這些引文格式不一定是100％准確.