Hein, M. (1977). Foundations of college chemistry (4th ed.). Brooks/Cole.
Tohutoru Kātū Chicago (17th ed.)Hein, Morris. Foundations of College Chemistry. 4th ed. Monterey: Brooks/Cole, 1977.
Tohutoro MLA (9th ed.)Hein, Morris. Foundations of College Chemistry. 4th ed. Brooks/Cole, 1977.
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