APA način citiranja

Sáenz R., J. A., & Nassar C., M. (1965). Phytochemical Screening of Costa Rican Plants: Alkaloid Analysis II.

Čikaški stil citiranja

Sáenz R., José A., i Maryssia Nassar C. Phytochemical Screening of Costa Rican Plants: Alkaloid Analysis II. 1965.

MLA način citiranja

Sáenz R., José A., i Maryssia Nassar C. Phytochemical Screening of Costa Rican Plants: Alkaloid Analysis II. 1965.