Gaya APA

Jim.J.A, . (1983). Drilling A Source Book on Oil and Gas well drilling from exploration to completion (E-Book) . United States of America: PennWell Publishing Company.

Gaya MLA

Jim.J.A, . "Drilling A Source Book on Oil and Gas well drilling from exploration to completion (E-Book)". United States of America: PennWell Publishing Company, 1983. E-book.