Thompson, A. A. (1990). The competition game: PLAYER'S MANUAL. Prentice Hall.
Cita Chicago (17th ed.)Thompson, Arthur A. The Competition Game: PLAYER'S MANUAL. Englewood Cliffs, N.J: Prentice Hall, 1990.
Cita MLA (9th ed.)Thompson, Arthur A. The Competition Game: PLAYER'S MANUAL. Prentice Hall, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.