Ludwigson, John.

Resources: used and abused. - [New York : United Nations, 1972] - Man's home .

Cover title. "UN sales number 72.I.5." "Prepared with the cooperation of the Secretariat of the United Nations Conference on the Human Environment."



73170831


Natural resources.
Man -- Influence on nature.--Man -- Influence on nature.
Conservation of natural resources.

HC55 / .L75

333.7