Cita APA (7th ed.)

Perls, F. S. (1973). The gestalt approach & eye witness to therapy. Science & Behavior Books.

Cita Chicago (17th ed.)

Perls, Frederick S. The Gestalt Approach & Eye Witness to Therapy. [Ben Lomond, Calif.]: Science & Behavior Books, 1973.

Cita MLA (9th ed.)

Perls, Frederick S. The Gestalt Approach & Eye Witness to Therapy. Science & Behavior Books, 1973.