Gaya APA

Leenheer, A, P, D. et al (1992). Modern Chromatographic Analysis of Vitamins (2nd.ed). New York: Marcel Dekker.

Gaya MLA

Leenheer, Andre, P., De. et al. "Modern Chromatographic Analysis of Vitamins". 2nd.ed New York: Marcel Dekker, 1992. Text.