Herold, S. C. (1941). Oil well drainage. Stanford University Press.
Lua i Stíl Chicago (17ú heag.)Herold, Stanley C. Oil Well Drainage. London: Stanford University Press, 1941.
Lua MLA (9ú heag.)Herold, Stanley C. Oil Well Drainage. Stanford University Press, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.