20928 1190 10 Jean Philippe uzan Primary Author mixed material september 29, 2010 Rediscovering on the Appalachian Trail Bill Bryson Primary Author mixed material Isco Primary Author mixed material Isco Social Science in a Virtual World William Sims Bainbridge Primary Author mixed material 9780262013703 United States of America Massachusetts Institute of Technology 2010 Clutch Primary Author mixed material Clutch M. Gasperini and G. Veneziano Primary Author mixed material 12 Jul 2002 A Guide to Critical Thinking Ed.9 Vincent Ryan Ruggiero Primary Author mixed material 9780078038181 New York McGraw-Hill 2012 Laura Brandenburg Primary Author mixed material 2009 Neil J. Smelser Primary Author John S. Reed Additional Author mixed material 9780520273566 California University of California Press 2012 Jayant V.Narlikar Primary Author mixed material 9780521858984