text New York Prentice Hall 2004 Virginia ed. monographic 796p Physical Science (Science Explorer, Virginia) 541.3 PRE 013190230X (unknown binding) 9780131902305 (unknown binding) http://www.amazon.com/exec/obidos/ASIN/013190230X/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/013190230X/chopaconline-20