Lessons in rotary drilling. unit I lesson 1. the rotary rig and its components.
Lessons in rotary drilling. unit I lesson 1. the rotary rig and its components.
Texas : Petroleum Extension Service,. 1980.
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v, 39 hlm., ilus., 28 cm.
Perpustakaan PEM Akamigas DIGITAL LIBRARY PEM AKAMIGAS (Call Number: 622.24 Pet I-I-1.)