McWeeny, Roy. Coulson's valence / - 3rd ed. - Oxford: Orford University Press, ©1979. - x, 434p. : ill. ; 23 cm. Includes index Includes bibliography ISBN: 9780198551454 Subjects--Topical Terms: ValenceWavefunctionsChemical reactivity Dewey Class. No.: 541.224 / MCW