Campbell Colin Dennis

Carrieres Et Fours A Chaux Dumont-Wautier

Catrel S.A. Societe D'Etudes et D'Applications Industrielle

CDF Chimie, S.A.

Centre d'Etudes et de Recherches des Phosphates Mineraux Cerphos

Charkoudian John C.

Chem-Trol Pollution Services, Inc.

Chepkalenko Mikhail G.

Chepkalenko Mikhail Gavrilovich

Chiyoda Chemical Engineering & Constr., Co., Ltd.

Chu George

Cia. Valenciana de Cementos Portland S.A.

Ciesielski Denise

Clarke W. J.

Clarke William J.

Clausi Adolph Scott

Clavenna LeRoy R.

Cleaver Gordon E.

Cleland Andrew J.

Clonts Alpheus Eugene