Cita APA

Beck, D. E., & Cowan, C. C. (1995). Spiral dynamics: Mastering values, leadership and change. Blackwell Oxford: [s.n].

Citación estilo Chicago

Beck, Don Edward, and Christopher C. Cowan. Spiral Dynamics: Mastering Values, Leadership and Change. Blackwell Oxford: [s.n], 1995.

Cita MLA

Beck, Don Edward, and Christopher C. Cowan. Spiral Dynamics: Mastering Values, Leadership and Change. Blackwell Oxford: [s.n], 1995.