Sundel,, Sandra S.
Behavior modification in the human services : a systematic introduction to concepts and applications / Sandra S. Sundel, Martin Sundel
Behavior modification in the human services : a systematic introduction to concepts and applications / Sandra S. Sundel, Martin Sundel
. - Newbury Park : Sage, cop. 1993
. - XXII, 346 p. 26 cm
0-8039-3416-5 (Brochado)
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