01251nas 2200385-a 450 991014481810332120240413025830.0(CKB)991042731810554(CONSER)---93664117-(DE-599)ZDB2113855-2(EXLCZ)9999104273181055419930302b19911995 --- aengtxtrdacontentcrdamediacrrdacarrierResearch in middle level educationColumbus, Ohio National Middle School Associationc1991-1 online resourcePrint version: Research in middle level education. 1082-5541 (DLC) 93664117 (OCoLC)27655010 Res. middle level educ.Middle schoolsUnited StatesPeriodicalsMiddle schoolsfast(OCoLC)fst01020553United StatesfastPeriodicals.fastPeriodicals.lcgftMiddle schoolsMiddle schools.373.2/36/0973National Middle School Association.JOURNAL9910144818103321exl_impl conversionResearch in middle level education2120286UNINA