The politics of development forests, mines & hydro-electric power in Ontario, 1849-1941 by Nelles, H. V.

Table of contents only

Off -road vehicles and public lands a problem analysis

Little Sahara recreation area and off-road vehicles problems, priorities and promising solutions

Land development planning and economics study

The economics of environmental improvement.

Environmental quality by Sewell, W R Derrick

McGraw-Hill encyclopedia of environmental science.

The environmental challenge by Johnson, Willis Hugh 1902-

The liquid metal fast breeder reactor a environmental and economic critique by Cochran, Thomas B

The environmental crisis and corporate debt policy by Ray, Marvin E