APA aipamena

Gómez P., L. D. (1971). Palmacites berryanum, a new palm fossil from the Costa Rican Tertiary.

Chicago Style aipamena

Gómez P., Luis Diego. Palmacites Berryanum, a New Palm Fossil From the Costa Rican Tertiary. 1971.

MLA aipamena

Gómez P., Luis Diego. Palmacites Berryanum, a New Palm Fossil From the Costa Rican Tertiary. 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.