Mitchell, E. J. (1976). Vertical integration in the oil industry. American Enterprise Institute for Public Policy Research.
Chicago-referens (17:e uppl.)Mitchell, Edward J. Vertical Integration in the Oil Industry. Washington, D.C: American Enterprise Institute for Public Policy Research, 1976.
MLA-referens (9:e uppl.)Mitchell, Edward J. Vertical Integration in the Oil Industry. American Enterprise Institute for Public Policy Research, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.