Cita APA (7th ed.)

Guide & Pierrakos, E. (1990). The pathwork of self-transformation. Bantam.

Cita Chicago (17th ed.)

Guide i Eva Pierrakos. The Pathwork of Self-transformation. New York: Bantam, 1990.

Cita MLA (9th ed.)

Guide i Eva Pierrakos. The Pathwork of Self-transformation. Bantam, 1990.