Gaya APA

V.Hartkope., S, G, R, B. (1981). Introduction To Analytical Chemistry (2). Boston: Allyn and Bacon, Inc..

Gaya MLA

V.Hartkope., Schenk, George,, Richard, B.Hahn,Arleign. "Introduction To Analytical Chemistry". 2 Boston: Allyn and Bacon, Inc., 1981. Text.