Dietrich, J. E. (1953). Play direction. Prentice-Hall.
Cita Chicago (17th ed.)Dietrich, John E. Play Direction. Englewood Cliffs, N. J: Prentice-Hall, 1953.
Cita MLA (9th ed.)Dietrich, John E. Play Direction. Prentice-Hall, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.