00664nam a2200229 a 4500 70541 BD-RjUL 20211209082019.0 170418s1973 enk||||| |||| 001 0 eng d 0669813311 (BD-RjUL)70755 BD-RjUL eng BD-RjUL eng 23 540 TEA 1973 Teacher's guide for Chemistry : experiments and principles / Paul R. O'Connor ... [ et. al ]. London : D.C. Heath, 1973. ix, 453 p. : ill. ; 25 cm. Includes index Chemistry. 208794 O'Connor, Paul R. 117191 ddc BK 70541 70541 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1991-03-28 Canada 0 540 TEA 1973 2017-04-18 00:00:00 C-1 2017-04-18 BK