North, H. B. (1912). Laboratory experiments in general chemistry (Prelim. ed.). D. Van Nostrand Co..
Dyfyniad Arddull ChicagoNorth, Henry Briggs. Laboratory Experiments in General Chemistry. Prelim. ed. New York: D. Van Nostrand Co., 1912.
Dyfyniad MLANorth, Henry Briggs. Laboratory Experiments in General Chemistry. Prelim. ed. D. Van Nostrand Co., 1912.
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