Gaya APA

Laitinen, H, A., Harris, W, E. (1975). Chemical analysis : an advanced text and reference (ed.2). New York: McGraw-Hill Book Co..

Gaya MLA

Laitinen, Herbert, A.., Harris, Walter, E.. "Chemical analysis : an advanced text and reference". ed.2 New York: McGraw-Hill Book Co., 1975. Text.