Gaya APA

Knevel, A, M. et al (1957). Quantitative Pharmaceutical Chemistry 6th Ed. (6th Ed.). New York: McGraw-Hill Book Company.

Gaya MLA

Knevel, Adelbert, M.. et al. "Quantitative Pharmaceutical Chemistry 6th Ed.". 6th Ed. New York: McGraw-Hill Book Company, 1957. Text.