William C. Blackman, Jr.

Technique and technology of exploration works (1)

Philippe Van Marcke & Wim Bastiaens

Alexander Zaporozec & J. E. Conrad & R. Hirata & P-O. Johansson (...)

Hydrogeology (1)

Lawrence K.Wang & Yung-Tse Hung & Howard H.Lo & Constantine Yapijakis (...)

Hydrogeology (1)

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

Hydrogeology (1)

Elli Louka

Economic and social geography (1)

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

Hydrogeology (1)

PAUL T. WILLIAMS

Hydrogeology (1)