Cita APA (7a ed.)

Fletcher, B., Bell, A., Buttery, J., & Whittaker, M. (1992). 50 activities for achieving change. HRD Press.

Cita Chicago Style (17a ed.)

Fletcher, Barry, Ann Bell, John Buttery, y Mike Whittaker. 50 Activities for Achieving Change. Amherst, Mass.: HRD Press, 1992.

Cita MLA (9a ed.)

Fletcher, Barry, et al. 50 Activities for Achieving Change. HRD Press, 1992.