Gaya APA
Gatlin, C. (1960).
Potroleum Engineering Drilling And Well Completions (Ed.1, Cet.1).
USE,. New York London:
Prentice Hall.
Gaya MLA
Gatlin, Carl.
"Potroleum Engineering Drilling And Well Completions".
Ed.1, Cet.1
USE,. New York London:
Prentice Hall,
1960.
Buku TP.