Perkins, Peter Graham. Elementary molecular bonding theory [by] Peter G. Perkins. - London, Methuen, 1969. - viii, 183 p. illus. 20 cm. - Methuen's monographs on chemical subjects . Distributed in the U.S.A. by Barnes & Noble. Bibliography: p. 178. ISBN: 416426808 LCCN: 71447472 Subjects--Topical Terms: Chemical bonds LC Class. No.: QD461