APA

American Petroleum Institute A., . (1987). Bulletin on round thread casing joint strength with combined internal pressure and bending. Washington: American Petroleum Institute, API.

Chicago

American Petroleum Institute API, . 1987. Bulletin on round thread casing joint strength with combined internal pressure and bending. Washington: American Petroleum Institute, API.

Harvard

American Petroleum Institute A., . (1987). Bulletin on round thread casing joint strength with combined internal pressure and bending. Washington: American Petroleum Institute, API.

MLA

American Petroleum Institute API, . Bulletin on round thread casing joint strength with combined internal pressure and bending. Washington: American Petroleum Institute, API. 1987.