APA način citiranja

Stoltzfus, R. J., & Habicht, J. P. (1993). Measuring the effects of vitamin A supplementation.

Čikaški stil citiranja

Stoltzfus, R J., i J P. Habicht. Measuring the Effects of Vitamin A Supplementation. 1993.

MLA način citiranja

Stoltzfus, R J., i J P. Habicht. Measuring the Effects of Vitamin A Supplementation. 1993.