Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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