APA-referens (7:e uppl.)
Zeithlin, R. N. (1979). Prehistoric long-distance exchange on the southern Isthmus of Tehuantepec, Mexico. University Microfilms International.
Chicago-referens (17:e uppl.)
Zeithlin, Robert Norman. Prehistoric Long-distance Exchange on the Southern Isthmus of Tehuantepec, Mexico. Ann arbor, Michigan: University Microfilms International, 1979.
MLA-referens (9:e uppl.)
Zeithlin, Robert Norman. Prehistoric Long-distance Exchange on the Southern Isthmus of Tehuantepec, Mexico. University Microfilms International, 1979.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.