APA-referens (7:e uppl.)

, H. Horizontal wells: Formation evaluation, drilling, and production, including heavy oil recovery. Gulf Publ. Co.

Chicago-referens (17:e uppl.)

, HORIZONTAL. Horizontal Wells: Formation Evaluation, Drilling, and Production, Including Heavy Oil Recovery. Gulf Publ. Co.

MLA-referens (8:e uppl.)

, HORIZONTAL. Horizontal Wells: Formation Evaluation, Drilling, and Production, Including Heavy Oil Recovery. Gulf Publ. Co.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.