Warfield, G. J. (1976). Effects of an educational program for parents of retarded children ((Facs.).). Xerox Univ. Microfilms [u.a.].
Chicago-Zitierstil (17. Ausg.)Warfield, Grace J. Effects of an Educational Program for Parents of Retarded Children. (Facs.). Ann Arbor, Mich. [u.a.]: Xerox Univ. Microfilms [u.a.], 1976.
MLA-Zitierstil (9. Ausg.)Warfield, Grace J. Effects of an Educational Program for Parents of Retarded Children. (Facs.). Xerox Univ. Microfilms [u.a.], 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.