00674nam a2200217Ia 450000100060000000300050000600500170001100800410002801000150006902000150008405000210009908200160012010000370013624500480017326000400022130000320026135000100029350000590030350400410036265000530040336317BIBL20160527195506.0720321s1971    nyua     b    00110 eng    a 72177927   a03910003300 aQD469b.R87 1971  a541/.224/0910aRussell, Colin Archibald.2Local14aThe history of valencyc[by] C. A. Russell.0 a[New York]bHumanities Pressc1971.  axii, 373 p.billus.c23 cm.  a16.50  aBased on the author's thesis, London University, 1962.  aIncludes bibliographical references. 0aValence (Theoretical chemistry)xHistory.2Local