Cita APA (7a ed.)

Collingwood, T. R., & Carkhuff, R. R. (1976). Get fit for living. Human Resource Development.

Cita Chicago Style (17a ed.)

Collingwood, Thomas R., y Robert R. Carkhuff. Get Fit for Living. Amherst, Massachusetts: Human Resource Development, 1976.

Cita MLA (9a ed.)

Collingwood, Thomas R., y Robert R. Carkhuff. Get Fit for Living. Human Resource Development, 1976.