Clewlow, W. C. (1967). Colossal heads of the Olmec culture. University of California Archaeological Research Facility.
Ondo kopiatu da
Kopiatzeak huts egin du
Chicago Style (17th ed.) Zitazioa
Clewlow, William C. Colossal Heads of the Olmec Culture. Berkeley: University of California Archaeological Research Facility, 1967.
Ondo kopiatu da
Kopiatzeak huts egin du
MLA (9th ed.) Zitazioa
Clewlow, William C. Colossal Heads of the Olmec Culture. University of California Archaeological Research Facility, 1967.
Ondo kopiatu da
Kopiatzeak huts egin du
Kontuz: berrikusi erreferentzia hauek erabili aurretik.