1933
Bibliografía (25 obras)
Sound fundamentals
1997
Light fundamentals
Heat fundamentals
Mechanics fundamentals
Electricity and magnetism fundamentals
1996
Who?
1995
Where?
When?
What?
1994
All thumbs guide to car care
1993
All thumbs guide to home security
Home wiring from start to finish
All thumbs guide to home plumbing
1992
All thumbs guide to home wiring
All thumbs guide to repairing major home appliances
All thumbs guide to painting, wallpapering & stenciling
All thumbs guide to home energy savings
39 easy engineering experiments
Science for kids : 39 easy geography activities
Science for kids
1990
Physics for kids
1989
Home electrical wiring made easy
1988
Troubleshooting & repairing small home appliances
Understanding magnetism