Molecular orbitals in chemistry, physics, and biology : A tribute to R.S. Mulliken / Edited by Per-Olov Löwdin [and] Bernard Pullman. - New York : Academic Press, 1964 - xiii, 578 p. : ill. ; 24 cm. Includes bibliographies and index Subjects--Topical Terms: Molecular orbitals. Dewey Class. No.: 541.22 / MOL 1964