, H. Horizontal wells: Formation evaluation, drilling, and production, including heavy oil recovery. Gulf Publ. Co.
Chicago-viite (17. p.), HORIZONTAL. Horizontal Wells: Formation Evaluation, Drilling, and Production, Including Heavy Oil Recovery. Gulf Publ. Co.
MLA-viite (8. p.), HORIZONTAL. Horizontal Wells: Formation Evaluation, Drilling, and Production, Including Heavy Oil Recovery. Gulf Publ. Co.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.