Citazione Stile APA (7a Edizione)

Gomberg, W. (1955). A trade union analysis of time study (2nd ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Gomberg, William. A Trade Union Analysis of Time Study. 2nd ed. New York: Prentice-Hall, 1955.

Citatione MLA (9a ed.)

Gomberg, William. A Trade Union Analysis of Time Study. 2nd ed. Prentice-Hall, 1955.