APA način citiranja

Guggenheim, K. (1944). The biological value of carotene from various sources and the effect of vitamin E on the utilization of carotene and of vitamin A.

Čikaški stil citiranja

Guggenheim, K. The Biological Value of Carotene From Various Sources and the Effect of Vitamin E On the Utilization of Carotene and of Vitamin A. 1944.

MLA način citiranja

Guggenheim, K. The Biological Value of Carotene From Various Sources and the Effect of Vitamin E On the Utilization of Carotene and of Vitamin A. 1944.