ATL Press, Inc. 1/97 Cambridge University Press 6/96 Cygnus-Quasar Books 7/96 Gordon and Breach Science Publishers 5/97 pg 65 Random House (First Light) 1/97 Shutan Camera & Video 6/97 pg 21 Sky Planner Enterprises 1/97 Springer-Verlag 5-96 University of Arizona Press 10/96 William-Bell, Inc. 9/96