Não informado. (2000). SPE Drilling & Completion. Society of Petroleum Engineers.
Chicago-viite (17. p.)Não informado. SPE Drilling & Completion. Richardson, Tex: Society of Petroleum Engineers, 2000.
MLA-viite (8. p.)Não informado. SPE Drilling & Completion. Society of Petroleum Engineers, 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.