Natural resource conservation an ecological approach by Owen, Oliver S. 1920-

Table of contents only

Pollution the land we live on by Jones, Claire

Nature study for conservation a handbook for environmental education by Brainerd, John W. 1918-

Table of contents only

Natural resources in Latin American development by Grunwald, Joseph 1920-

Inventory of natural resources technical report.

The environmental handbook / edited by Garrett De Bell by De Bell, Garrett

Use and conservation of the biosphere proceedings. by Intergovernmental Conference of Experts on the Scientific Basis for Rational Use and Conservation of the Resources of the Biosphere Paris 1968

Shadows over the land by McCoy, J. J. (Joseph J.) 1917-

The environmental crisis man's struggle to live with himself

Natural resources of developing countries: investigation, development and rational utilization report of the advisory committee on the Application of Science and Technology to Deve...