
Our Amazing Animal Friends (Books for Young Explorers)
1990
ISBN 9780870448218
America's ancient cities
1988
ISBN 9780870446276
Three little indians
1974
ISBN 9787401011002
The Mighty Aztecs
1981
ISBN 9780870443671
Animal families
1990
ISBN 9780870448195
Secrets from the past
1979
ISBN 9780870443169
Wildlife Alert
1980
ISBN 9780870443183
Los Mayas
2000
ISBN 9788482980225
Safari!
1982
ISBN 9780870443855
Preserving America's Past
1983
ISBN 9780870444159
Towns down underground
1991
ISBN 9780870448461
Lost kingdoms of the Maya
1993
ISBN 9788482982199
Secretos del Pasado
1994
ISBN 9780915741533