Gaya APA

LTD, H, S, &, E, C. (1980). Coal Cleaning : (Oil Agglomeration Process) . : Hitachi Shipbuilding & Engineering CO. LTD.

Gaya MLA

LTD, Hitachi, Shipbuilding, &, Engineering, CO.. "Coal Cleaning : (Oil Agglomeration Process)". : Hitachi Shipbuilding & Engineering CO. LTD, 1980. Text.