1986 The Challenge of the Unknown -- Teaching Guide (TE)(P) by James C. Crimmins, Deborah A. Hudson, Ann M. Derry, Hilary C. Maddux, & Joshua G. Miller ***ISBN-13: 9780393955361 ***Condition: Good Used--minor cut on the cover and few pages ***Pages: 276 @ASKU @57.2.2>edu
