John Bacher. (2000). Petrotyranny. Canada: Dundurn.
Chicago Style aipamenaJohn Bacher. Petrotyranny. Canada: Dundurn, 2000.
MLA aipamenaJohn Bacher. Petrotyranny. Canada: Dundurn, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena