1. A bibliography for hindered internal rotation covering work reported in the literature up to September, 1962, has been prepared by D. R. Herschbach, University of California Radiation Laboratory report UCRL-10404.
2. Infrared Spectroscopy from 5 to 200 Microns with a Small Grating Spectrometer*
3. C.H. Perry, Quarterly Progress Report No. 70, Research Laboratory of Electronics, M.I.T., July 15 (1963).
4. Microwave Spectrum, Internal Barrier, Structure, Conformation, and Dipole Moment of Acetyl Fluoride
5. Tables of Interatomic Distances;Chemical Society,1958