Oil and oilfield equipment and service companies worldwide 1985-86 / edited by Don Nelson. Nelson, Don, 1930- Petroleum industry and trade Directories. Oil field equipment and supplies industry Directories. HD9560.3 .O35 1985 552.06 19 NEW Includes indexes. London ; New York : E. & F.N. Spon, 1985. 1985. 1985 Text 781 p. ; eng