by George Bachman with the assistance of Lawrence Narici. by Croswell Bowen with the assistance of Shane O'Neill. by Bruce J. Cohen, with the assistance of Madelyn M. Harrison. by George H. McKnight; with the assistance of Bert Emsley. by Isadore Meschan, with the assistance of R. M. F. Farrer-Meschan. [by] Ralph Abraham with the assistance of Jerrold E. Marsden. edited by Leo A. Orleans, with the assistance of Caroline Davidson. by C. Wright Mills with the assistance of Helen Schneider. Steven I. Hajdu, with the assistance of Eva M. Hajdu. [by] Hilton M. Briggs, with the assistance of Dinus M. Briggs.