Cita APA (7a ed.)

Watts, F. (1921). An introduction to the psychological problems of industry. Allen & Unwin.

Cita Chicago Style (17a ed.)

Watts, Frank. An Introduction to the Psychological Problems of Industry. London: Allen & Unwin, 1921.

Cita MLA (8a ed.)

Watts, Frank. An Introduction to the Psychological Problems of Industry. Allen & Unwin, 1921.