Cita APA (7th ed.)
Sader-Perez, R. (1969). The Venezuelan State Oil: Reports to the people. Corpor.Venezolan del petroleo.
Cita Chicago (17th ed.)
Sader-Perez, Ruben. The Venezuelan State Oil: Reports to the People. Caracas: Corpor.Venezolan del petroleo, 1969.
Cita MLA (9th ed.)
Sader-Perez, Ruben. The Venezuelan State Oil: Reports to the People. Corpor.Venezolan del petroleo, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.