Předmětová hesla
Effect of human beings on
3
Nature
3
Environmental aspects
2
Historie
2
Deforestation
1
Epidemics
1
Famine
1
Food supply
1
Human ecology
1
Influence
1
Landscape changes
1
Malaria
1
Medical geography
1
Mosquitoes
1
Mountain ecology
1
Revolutions
1
Social change
1
Social conditions
1
Soil erosion
1
World War, 1914-1918
1
Yellow fever
1
pathogenicity
1