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

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

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William C. Blackman, Jr.

Technique and technology of exploration works (1)

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

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Elli Louka

Economic and social geography (1)

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

Hydrogeology (1)