Lessons in rotary drilling. unit I lesson 3. the drill string.
Lessons in rotary drilling. unit I lesson 3. the drill string.
Texas :Petroleum Extension Service,. 1965.
English
Text
v, 58 hlm., ilus., 28 cm.
Perpustakaan PEM Akamigas DIGITAL LIBRARY PEM AKAMIGAS (Call Number: 622.24 Pet l-I-3)