Cook, David B. Ab initio valence calculations in chemistry D. B. Cook. - London : Butterworths, 1974. - ix, 271 p. illus. 24 cm. Includes bibliographies. ISBN: 0408705515 LCCN: 74173686 Subjects--Topical Terms: Quantum chemistry LC Class. No.: QD462 Dewey Class. No.: 541