Cita APA (7th ed.)

Holding, D. (1965). Principles of Training. Pergamon Pr..

Cita Chicago (17th ed.)

Holding, D.H. Principles of Training. New York: Pergamon Pr., 1965.

Cita MLA (9th ed.)

Holding, D.H. Principles of Training. Pergamon Pr., 1965.

Atenció: Aquestes cites poden no estar 100% correctes.