Drilling wastes : proceeding of the 1988 international conference on drilling wastes Calgary, Alberta, Canada, 5-8 April - Internal Conference on Drillling Wastes (1988 : Calgary, Alberta); Engelhardt, F. R. (F. Rainer); Ray, J. P. (London : Elsevier Applied Science, 1989)
Keywords: Oil well drilling -- Environmental aspects -- Congresses; Drilling muds -- Environmental aspects -- Congresses; Oil well drilling -- Waste disposal -- Congresses