Chugh, , Chandra Parkash.
Drilling technology handbook / Chandra Parkash.Chugh. - New Delhi : Oxford & IBH Co.PVT. c1994. - xx, 460p. : ill. ; 24 cm.
Includes bibligraphical references and index.
0878143688
91008190
Oil well drilling rigs--Electric driving.
Silicon-controlled rectifiers.
622.3381
Drilling technology handbook / Chandra Parkash.Chugh. - New Delhi : Oxford & IBH Co.PVT. c1994. - xx, 460p. : ill. ; 24 cm.
Includes bibligraphical references and index.
0878143688
91008190
Oil well drilling rigs--Electric driving.
Silicon-controlled rectifiers.
622.3381