(Q34210561)
Statements
1 reference
Contingent observation: an effective and acceptable procedure for reducing disruptive behavior of young children in a group setting (English)
1 reference
1 reference
1 reference
J. K. Porterfield
E. Herbert-Jackson
1 January 1976
1 reference
1 reference
55-64
1 reference
Identifiers
1 reference
1 reference
1 reference