APA Style

Service, P, E. (1971). Lessons in Well Servicing and Workover : Lesson 10 - Fishing Tools and Techniques . Texas: Petroleum Extension Service.

MLA Style

Service, Petroleum, Extension. "Lessons in Well Servicing and Workover : Lesson 10 - Fishing Tools and Techniques". Texas: Petroleum Extension Service, 1971. Teknik.