Não informado. (1975). Improved oil-recovery field reports. Society of Petroleum Engineers.
Chicago-referens (17:e uppl.)Não informado. Improved Oil-recovery Field Reports. Dallas, Tex: Society of Petroleum Engineers, 1975.
MLA-referens (8:e uppl.)Não informado. Improved Oil-recovery Field Reports. Society of Petroleum Engineers, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.