cam a22 4 4500 103464565 CHVBK 20200730045330.0 110628s2003 xxu 00 eng (OCoLC)746458045 (IDSBB)005632979 SzZuIDS BS/BE B571 kids Walberg Herbert J. Improving educational productivity by Herbert J. Walberg Chicago University of Illinois 2003 61 S. Text txt rdacontent/ger ohne Hilfsmittel zu benutzen n rdamedia/ger Band nc rdacarrier/ger Publication series No. 1 Ausdruck aus dem Internet URL: http://www.temple.edu/lss/pdf/publications/pubs2003-1.pdf [Stand 2011-06-28] BK020000 XK020000 XK020000 IDSBB B571 B571 FH ZUW 115.00/ 101 NELB5711106 IDSBB 100 1- Walberg Herbert J. IDSBB 490 0- Publication series No. 1