by Peter M. Ray...[et al.] by Peter I. Hajnal. by Peter Terrell ... [et al.] ed. by Lester R.Brown...et al. by Louis C.Nanassy...et al. by Richard N. Aufman...et al. by Peter H. Reynolds. by Peter R. Odell. by Isidore Altman...et al. by Jane Werner Watson...et al.