Energy resources and the environment

Teacher's study guide on the biology of human populations. gan Unesco

Man and the environment an introduction to human ecology and evolution gan Boughey, Arthur S.

Living in the environment concepts, problems, and alternatives gan Miller, George Tyler 1931-

Environment resources, pollution and society gan Murdoch, William W.

Table of contents only

Human settlements preliminary bibliography of Philippine materials, theoretical literature and international case studies

Man's responsibility for nature ecological problems and wstern traditions gan Passmore, John Arthur

The environment a human crisis gan Piburn, Michael D.

National development and ecological integrity the geographic viewpoints gan Luna, Telesforo W.

Population ecology gan Quick, Horace F.