Discovery Works
de William Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Sumners
Ediciones (2)
- Houghton Mifflin Science Discovery Works - Unit E (2006)
Houghton Mifflin Company · inglés · ISBN 9780618002627
- Discovery Works (1996)
Silver Burdett Ginn · ISBN 9780382334801
