Design on file /

Published 1984

The field guide to prehistoric life /

by Lambert, David, 1932-
Published 1985

The field guide to early man /

by Lambert, David, 1932-
Published 1987

The Field guide to geology /

by Lambert, David, 1932-
Published 1988

Earth science on file /

Published 1988

Time lines on file /

Published 1988

Physical sciences on file /

Published 1989

Charts on file /

Published 1988

Religions on file /

Published 1990

Nature projects on file : experiments, demonstrations, and projects for school and home /

Published 1992

Environment on file /

Published 1991

Junior science on file /

Published 1991

African history on file /

Published 1994

Math on file /

Published 1995

Peoples of East Africa /

Published 1997

Peoples of North Africa /

Published 1997

Peoples of West Africa /

Published 1997

Peoples of Southern Africa /

Published 1997

Nations of Africa /

Published 1997

Peoples of Central Africa /

Published 1997