books by author
Knapp
Rivers and Lakes (Caring For Envrnmt) (Caring for Environments)
Hydrogen and the Noble Gases (Elements S.)
World Weather, Climate and Climatic Change: Vol 11 (World Geography S.)
Sulphur (Elements)
Earth and Beyond (Science@School S.)
How Things Work: Vol 12 (Science in Our World S.)
Cities of the World: Vol 4 (World geography)
Sounds and Music: Vol 3 (Science in Our World S.)
World Industry and Making Goods: Vol 7 (World Geography S.)
Computers and Robots: v. 25 (Science in Our World S.)
The World's Changing Energy Supplies: 9 (World Geography S.)
Homes of the World: The Way People Live: Vol 2 (World geography)
Farms and the World's Food Supply: Vol 6 (World geography)
The Challenge of the Economics Environment (Advanced Geographies S.)
Grasslands (Caring For Environment)
Weather: v. 1 (Visual Science Encyclopedia S.)
March (WeatherWatch)
February: Vol. 2 (WeatherWatch)
August: v. 8 (WeatherWatch)
July: v. 7 (WeatherWatch)
June: v. 6 (WeatherWatch)
May: v. 5 (WeatherWatch)
November (WeatherWatch)
Geological Time: v. 7 (Earth Science)
Glass (Materials Science)
Ceramics (Materials Science)
Science and Design: v. 23 (Science in Our World S.)
Light and Sound (Visual Science Encyclopedia S.)
The Earth's Resources: v.8 (Earth Science)
