BT
Bridget Travers
Books
Eureka!
1995
ISBN 9780810398078
The Gale Encyclopedia of Science
1996
ISBN 9780810398924
World of Invention
1994
ISBN 9780810383753
UXL Encyclopedia of Science (Volume 9
1998
ISBN 9780787617257
UXL Encyclopedia of Science (Volume 2
1998
ISBN 9780787617189