Cita APA (7a ed.)

Hancock, L. E., & Mitchell, C. R. (2007). Zones of peace. Kumarian Press.

Cita Chicago Style (17a ed.)

Hancock, Landon E., y C. R. Mitchell. Zones of Peace. Bloomfield, CT: Kumarian Press, 2007.

Cita MLA (8a ed.)

Hancock, Landon E., y C. R. Mitchell. Zones of Peace. Kumarian Press, 2007.