Environmental ethics an introduction to environmental philosophy by Desjardins, Joseph R.

Automated information retrieval theory and methods by Frants, Valery I.

Surveying principles and applications by Kavanagh, Barry F.

Teaching science to children an inquiry approach by Friedl, Alfred E.

McGraw-Hill encyclopedia of science & technology an international reference work in twenty volumes including an index.

Integrated principles of zoology by Hickman, Cleveland Pendleton 1895-

Science today problem or crisisn

Student study art notebook inquiry into life by Mader, Sylvia S.

Environmental impact assessment for developing countries in Asia

Table of contents only, volume 2

General chemistry principles and modern applications by Petrucci, Ralph H.