William C. Blackman, Jr.

Technique and technology of exploration works (1)

Richard M. Stapleton & Patricia Hemminger, Ph.D. & Susan L. Senecah, Ph.D. (...)

Hydrogeology (1)

Richard M. Stapleton

Hydrogeology (1)

Jane Holder & Maria Lee

Economic and social geography (1)

Frank Woodard, Ph.D., P.E.

Hydrogeology (1)

Davor Vidas

Technique and technology of exploration works (1)

Arthur P. J. Mol

Economic and social geography (1)