(1977). Positive displacement downhole and motor for rotary drilling rigs installation and maintenance [slaid]. Austin, Tex. : Petroleum Extension Service, The University of Texas at Austin.
Citazione stile Chigago Style (17a edizione)Positive Displacement Downhole and Motor for Rotary Drilling Rigs Installation and Maintenance [slaid]. Austin, Tex. : Petroleum Extension Service, The University of Texas at Austin, 1977.
Citatione MLA (9a ed.)Positive Displacement Downhole and Motor for Rotary Drilling Rigs Installation and Maintenance [slaid]. Austin, Tex. : Petroleum Extension Service, The University of Texas at Austin, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.