(1976). Listen, reflect, act: With attentive ear courageous heart. s.n..
Dyfyniad Arddull ChicagoListen, Reflect, Act: With Attentive Ear Courageous Heart. [S.l.: s.n., 1976.
Dyfyniad MLAListen, Reflect, Act: With Attentive Ear Courageous Heart. s.n., 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.