Alberta. Ministry of Energy, Alberta. Department of Energy, Alberta Energy and Utilities Board, & Albert Petroleum Marketing Commission. (2002). Investing in a sustainable private. Ministry of Energy.
Chicago-viite (17. p.)Alberta. Ministry of Energy, Alberta. Department of Energy, Alberta Energy and Utilities Board, ja Albert Petroleum Marketing Commission. Investing in a Sustainable Private. [Edmonton, Alberta]: Ministry of Energy, 2002.
MLA-viite (9. p.)Alberta. Ministry of Energy, et al. Investing in a Sustainable Private. Ministry of Energy, 2002.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.