Companion, Audrey L creator text bibliography biography dcu New York McGraw-Hill 1964 1955 monographic eng vi, 155p., illus. juvenile Ref. at the end of eaqch chap. Chemical bonding Chemistry Spectroscopy Biochemistry Spectrum analysis Acids Bases- chemistry Physical science Science Chemistry Spectroscopy Biochemistry Spectrum analysis Acids Bases- chemistry Physical science Science 541.57 Adlib 960221 200902210153555.7 adlib96000001