Lessons in rotary drilling. Unit I Lesson 10. safety on rthe rig.
Lessons in rotary drilling. Unit I Lesson 10. safety on rthe rig.
Texas : Petroleum Extension Service,. 1981.
English
Text
v, 62 hlm., ilus., 28 cm.
Perpustakaan PEM Akamigas DIGITAL LIBRARY PEM AKAMIGAS (Call Number: 622.24 Pet l-I-10.)