Cord, M. S. Microwave spectral tables vol. IV, polyatomic molecules without internal rotation M. S. Cord…[et al.] - Washington U. S. Department of Commerce 1968 - xii, 418p. - National bureau of standards monograph; 70 . Subjects--Topical Terms: NASA thesaurusPolyatomic moleculesTables - microwavesTables - spectrum analysis Universal Decimal Class. No.: 083:535.33 / COR-4