Cita APA (7a ed.)

Allen, D. N. d. G. (1954). Relaxation methods (1st. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Allen, Deryck Norman de Garrs. Relaxation Methods. 1st. ed. New York, NY: McGraw-Hill, 1954.

Cita MLA (8a ed.)

Allen, Deryck Norman de Garrs. Relaxation Methods. 1st. ed. McGraw-Hill, 1954.