Lua APA (7ú heag.)

(1923). Oil field engineering. Gas Engine Pub. Co..

Lua i Stíl Chicago (17ú heag.)

Oil Field Engineering. Cincinnati, Ohio: Gas Engine Pub. Co., 1923.

Lua MLA (8ú heag.)

Oil Field Engineering. Gas Engine Pub. Co., 1923.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.