Kelter, P. B. (1997). Study guide [for] chemistry (4th edition.). Boston: Houghton Mifflin.
Trích dẫn kiểu ChicagoKelter, Paul B. Study Guide [for] Chemistry. 4th edition. Boston: Houghton Mifflin, 1997.
Deismireacht MLAKelter, Paul B. Study Guide [for] Chemistry. 4th edition. Boston: Houghton Mifflin, 1997.
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