The Dusty universe proceedings of a symposium honoring Fred Lawrence Whipple on his retirement as director of the Smithsonian Astrophysical Observatory, October 17-19, 1973
Fred Lawrence Whipple 1906-; George B Field 1929-; A. G. W Cameron 1925- (Alastair Graham Walter); Smithsonian Astrophysical Observatory
New York Published for the Smithsonian Astrophysical Observatory by Neale Watson Academic Publications 1975