00411ca0 a2200157ua 450000500170000000800410001704000090005804100080006708200150007510000220009024500550011225000110016726000480017830000130022665000140023920190831134328.0080401s1940           g     b000 u eng u  aMAIN1 aeng14a547.7bPAU1 aPauling, Linus  .10aThe nature of the chemical bond / cLinus Pauling.  a2nd. /  aLondon :bOxford university press , c1940.  a450p. ;  0aChemistry