Bibliografía (48 obras)
Popol vuh =
2003
Los Desiertos
2000
Valleys
1976
Lakes
1973
State capital cities
1971
Rivers
1969
At home in our land
1965
At Home Around The World, Lands and Peoples of the World
Islands of the Ocean
1964
Islands of the ocean
Mountains
1962
Swamps
1961
Grasslands
1959
At home around the world
1958
The arctic tundra
The Arctic Tundra
South America
Tropical Rain Forests
1957
Tropical rain forests
Deserts
1956
The annals of the Cakchiquels
1953
Popol vuh
1950
Let's read about South America
The hidden burro
1949
World understanding begins with children
Other young Americans
1948
Education in Panama
The burro of Barnegat road
1945
Russia & America
The dragon & the eagle
1944
Half a hemisphere
1943
Teamwork in the Americas
The Incas
1942
Neighbors to the South
1941
The Aztec people
Neighbors to the south
Letters from Guatemala
Panchita
The good neighbors
1939
The good neighbours
Welcome stranger
