Eckert, Lyons, & Strevell. (1950). Directed Experiments in Chemistry. College Entrance Book Company.
Citace podle Chicago (17th ed.)Eckert, Lyons, a Strevell. Directed Experiments in Chemistry. New York: College Entrance Book Company, 1950.
Citace podle MLA (9th ed.)Eckert, et al. Directed Experiments in Chemistry. College Entrance Book Company, 1950.
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