Gaya APA

Howell, J, K, &, H, E, E. (1981). Electrified Oil Production an Engineering Text . Tulsa: PennWell Books.

Gaya MLA

Howell, J., K., &, Hogwood,, E., E.. "Electrified Oil Production an Engineering Text". Tulsa: PennWell Books, 1981. Text.