World Book Encyclopedia

Time: The Hands-On Approach to Science

David Glover y Andrew Haslam

Maps

Barbara Taylor y Andrew Haslam

Photography: Make It Work

Kathryn Sencor, Andrew Haslam, et al.

Buildings: The Hands-On Approach to Science

Andrew Haslam y World Book Encyclopedia

Flight: The Hands-On Approach to Science

Andrew Haslam y Jack Challoner

Body: The Hands-Approach to Science

World Book Encyclopedia, Liz Wyse, et al.

Weather

Andrew Haslam, World Book Encyclopedia, et al.