Sheldrick, William F. World sulphur survey / William F. Sheldrick. - Washington, D.C., U.S.A. : World Bank, 1984. - xxi, 170 p. ; 28 cm. - Industry and finance series ; v. 5 World Bank technical paper, no. 24 0253-7494 ; . Bibliography: p. 169-170. ISBN: 0821303791 LCCN: 84011939 Subjects--Topical Terms: Sulfur industry.Market surveys. LC Class. No.: HD9585.S82 / S53 1984 Dewey Class. No.: 338.2 / SHE 1984