APA način citiranja (7. izdanje)
Clewlow, W. C. (1967). Colossal heads of the Olmec culture. University of California Archaeological Research Facility.
Čikaški stil citiranja (17. izdanje)
Clewlow, William C. Colossal Heads of the Olmec Culture. Berkeley: University of California Archaeological Research Facility, 1967.
MLA način citiranja (9. izdanje)
Clewlow, William C. Colossal Heads of the Olmec Culture. University of California Archaeological Research Facility, 1967.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.