Nelson, W. L. (1949). Petroleum refinery engineering. New York : McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Nelson, Wilbur Lundine. Petroleum Refinery Engineering. New York : McGraw-Hill, 1949.
Lua MLA (9ú heag.)Nelson, Wilbur Lundine. Petroleum Refinery Engineering. New York : McGraw-Hill, 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.