Houghton Mifflin science discovery worksWilliam Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Sumners, Catherine Valentino · First published 2002 · Latest edition 2004Open the Tome
Houghton Mifflin ScienceWilliam Badders, Donald Peck, Lowell J. Bethel · First published 2002Open the Tome
Discovery Works Science Teaching GuideWilliam Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Summers, Catherine Valentino · First published 2000Open the Tome
Houghton Mifflin Discovery Works Teachers Guide/5 Texas Edition (Unit F Light and Sound)William Badders Dr. lowell J. Bethel · First published 2000Open the Tome
Houghton Mifflin Science Discovery Works Teaching Guide 3, Florida Edition (Unit B: Sun, Moon, and Earth)William Badders, Dr. Lowell J. Bethel, Dr. Victoria Fu, Donal Peck, Dr. Carolyn Sumners, Catherine Valetino · First published 2000Open the Tome
Discovery WorksWilliam Badders, Lowell J. Bethel, Victoria Fu, Donald Peck, Carolyn Sumners · First published 1996Open the Tome
DiscoveryWorksWilliam Badders, Donald Peck, Lowell J. Bethel, Carolyn Sumners, Victoria R. Fu, Catherine Valentino · First published 1996Open the Tome
