Harter, William G., 1943- A unitary calculus for electronic orbitals / William G. Harter [and] Christopher W. Patterson - Berlin : Springer-Verlag, 1976 - xii, 144 p. : ill. ; 25 cm. - Lecture notes in physics ; 49 . Includes bibliographical references and index ISBN: 0387076999 (pbk.) : USD 18.00 Subjects--Topical Terms: ElectronsAtomic orbitalsMolecular orbitalsUnitary operators Dewey Class. No.: 530.082