APA način citiranja

Dann, W. J., & Evelyn, K. A. (1938). The determination of vitamin A with the photoelectric colorimeter.

Čikaški stil citiranja

Dann, William John, i Kenneth Austin Evelyn. The Determination of Vitamin A With the Photoelectric Colorimeter. 1938.

MLA način citiranja

Dann, William John, i Kenneth Austin Evelyn. The Determination of Vitamin A With the Photoelectric Colorimeter. 1938.