J. Gunnet

title	ISBN-13 (ISBN-10)	year of publica- tion	other author(s)
Act Science: 10 Books + 1 Teachers Manual	978-1-56749-713-7 (1-56749-713-6)	2005	A. Klein · A. Sills
Act Science	978-1-56749-584-3 (1-56749-584-2)	2005	A. Klein · A. Sills