Gopang, Irshad Ali. Quantification and characterization of sludge deposits in crude oil storage tanks / Gopang Irshad Ali. - MUET, Jamshoro: Institute of Petroleum & Natural Gas Engineering, 2015. - xi, 41p. : ill. ; 30 cm. Includes references. Subjects--Topical Terms: Petroleum & Natural Gas Engineering. Dewey Class. No.: / GOP