Bradbury, R. H. (1938). A first book in chemistry (3d ed., 1938.). D. Appleton-Century Co.
Dyfyniad Arddull ChicagoBradbury, Robert H. A First Book in Chemistry. 3d ed., 1938. New York: D. Appleton-Century Co, 1938.
Dyfyniad MLABradbury, Robert H. A First Book in Chemistry. 3d ed., 1938. D. Appleton-Century Co, 1938.
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