A guide to the marine Isopod Crustacea of Pacific Costa Rica / Richard C. Brusca, Ernest W. Iverson

Endodoncia : los caminos de la pulpa / Stephen Cohen, Richard C. Burns

Capital investments of the world petroleum industry: 1971 / The chase Manhattan Bank ; Richard C. Sparling, Norma J. Anderson, John G. Winger

Capital investments of the world petroleum industry, 1967 / Richard C. Sparling, Norma J. Anderson, John G. Winger

Capital investiments of the world petroleum industry / Richard C. Sparling, Norma J. Anderson