The auxiliaries
By: edited by Jodie Leecraft.
Contributors: Leecraft, Jodie.
Edition: 2nd ed.
Series: Rotary drilling ;; unit 1, lesson 9; Rotary drilling series ;; unit 1, lesson 9.
Publisher: Petroleum Extension Service
Published: 1996
Place of publication: Austin, Tex
Language: eng
Subjects: Oil well drilling -- Equipment and supplies