Rathbone, J. L. (1959). Teach yourself to relax. Angus and Robertson.
Dyfyniad Arddull ChicagoRathbone, Josephine Langworthy. Teach Yourself to Relax. London: Angus and Robertson, 1959.
Dyfyniad MLARathbone, Josephine Langworthy. Teach Yourself to Relax. Angus and Robertson, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.