World Book Encyclopedia
Books
The World book of math power
1983
ISBN 9780716631606
Book of nations
1983
ISBN 9780716631668
Math Ages 8-10 (Clever Kids)
1995
ISBN 9780716692027
Science Ages 8-10 (Clever Kids)
1995
ISBN 9780716692065
Clever Kids
1995
ISBN 9780716692003
Clever Kids Language Skills
1996
ISBN 9780716692140
Clever Kids Study Skills
1996
ISBN 9780716692102
The World Book Encyclopedia of People and Places
1999
ISBN 9780716637950
Grasshoppers and Related Animals (World Book's Animals of the World)
2001
ISBN 9780716612193
World Book's Managing Your Teenage Life
2002
ISBN 9780716667049