Evolution
1993
Trees
1985
Life in prehistoric times
1997
The human body (Today's world)
1988
Allergy Bible
2001
Kingfisher Book of 1001 Questions and Answers (Question & Answer Books)
1990
The human body
1988
The human race
1988
Life on earth
1988
Living monsters
1978
Majestic mountains
1997
Mysteries of the rain forest
1996
Origins of life
1988
The Plant World (Let's Explore)
1990
Trees and Shrubs (Tracker Nature Guide S.)
1993
The deer in the forest
1988
The human race (Today's world)
1988
Life on earth (Today's world)
1988
Let's explore the plant world
1990
Evrim
1001 Wunder der Tierwelt. ( Ab 10 J.). Fragen und Antworten.
1991
The Allergy Bible
2005
