Mirkin, B. G. (1979). Group choice. V.H. Winston and sons.
Cita Chicago (17th ed.)Mirkin, Boris Grigorevich. Group Choice. Washington: V.H. Winston and sons, 1979.
Cita MLA (9th ed.)Mirkin, Boris Grigorevich. Group Choice. V.H. Winston and sons, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.