Cita APA (7a ed.)

Charters, W. W., Smiley, D. F., & Strang, R. M. (1935). Keeping healthy. Macmillan.

Cita Chicago Style (17a ed.)

Charters, W. W., Dean Franklin Smiley, y Ruth May Strang. Keeping Healthy. New York: Macmillan, 1935.

Cita MLA (8a ed.)

Charters, W. W., et al. Keeping Healthy. Macmillan, 1935.