Gaya APA
Service, P, E., Contra, I, A, O, D. (1965).
Lessons in rotary drilling. unit I lesson 3. the drill string. (1965).
:
Texas :Petroleum Extension Service,.
Gaya MLA
Service, Petroleum, Extension., Contra, Inter., Ass., Of, Drilling.
"Lessons in rotary drilling. unit I lesson 3. the drill string.".
1965
:
Texas :Petroleum Extension Service,,
1965.
Text.