TY - RPRT TI - Rules, praise, and ignoring: elements of elementary classroom control. AU - C H Madsen AU - W C Becker AU - D R Thomas PY - 1968 DO - 10.1901/jaba.1968.1-139 UR - https://pubmed.ncbi.nlm.nih.gov/16795170/ ID - 16795170 ER -