Eckert, Lyons, & Strevell. (1950). Directed Experiments in Chemistry. College Entrance Book Company.
Chicago-viite (17. p.)Eckert, Lyons, ja Strevell. Directed Experiments in Chemistry. New York: College Entrance Book Company, 1950.
MLA-viite (9. p.)Eckert, et al. Directed Experiments in Chemistry. College Entrance Book Company, 1950.
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