Human beings - Effect of environment on - History. - United States

Down to earth : = nature's role in American history / by: (Language materials, printed)

Down to earth = nature's role in American history / by: (Language materials, printed)

The Environment in American history : = nature and the formation of the United States / by: (Language materials, printed)

Natural resources- History.- United States

Human ecology- History.- United States

Human beings- Effect of environment on- United States

Philosophy of nature- History.- United States

United States

United States- Environmental conditions.

Nature- Effect of human beings on- United States