May, R. (1967). The art of counseling: A practical guide... Abingdon press.
Dyfyniad Arddull ChicagoMay, Rollo. The Art of Counseling: A Practical Guide... Nashville: Abingdon press, 1967.
Dyfyniad MLAMay, Rollo. The Art of Counseling: A Practical Guide... Abingdon press, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.