Daudel, R. (Raymond) Semiempirical wave-mechanical calculations on polyatomic molecules / by Raymond Daudel and Camille Sandorfy. - New Haven, Conn.: Yale University Press, 1971. - xiii, 133 p. : ill. ; 22 cm. - Yale series in the sciences. . Includes bibliographical references. ISBN: 0300014635 Subjects--Topical Terms: Molecular orbitals. Quantum chemistry.