The Yukpa cultivation system : a study of shifting cultivation in Colombia and Venezuela / Kenneth Ruddle

Soil erosion and population in central Mexico

The population of the Mixteca Alta, 1520-1960 / by Sherburne F. Cook and Woodrow Borah

The population of Central Mexico in the sixteenth century / by Sherburne F. Cook and Lesley Byrd Simpson

The population of Mexico in 1548 : an analysis of the Suma de visitas de pueblos / Woodrow Borah, S.F. Cook

The historical demography and ecology of the Teotlalpan

Exploitation of land in the sixteenth century / Lesley Byrd Simpson

Education for traditional food procurement in the Orinoco delta / by Kenneth Ruddle and Ray Chesterfield

Early colonial trade and navigation between Mexico and Peru

The central desert of Baja California; demography and ecology