Hein, M. (1986). Foundations of college chemistry (6th ed.). Brooks/Cole Pub. Co..
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Chicago-čujuhus (17. p.)
Hein, Morris. Foundations of College Chemistry. 6th ed. Monterey, Calif.: Brooks/Cole Pub. Co., 1986.
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MLA-čujuhus (9. p.)
Hein, Morris. Foundations of College Chemistry. 6th ed. Brooks/Cole Pub. Co., 1986.
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