edited by Harvey R. Brown and Rom Harr鈋. edited by Harvey Abramson and M.H. Rogers. edited by Garrett Hardin and John Baden. edited by Charles O. Wilson and Ole Gisvold. edited by Richard M. Aron and Se鈇n Dineen. edited by Roy M. Harrison and Roger Perry. edited by Robert P. Becker and Om Johari. edited by Charles B. Wilson and Julian T. Hoff. edited by Charles G. Gebelein and Frank F. Koblitz. edited by G.G. Gibson and R. Walker.