TY - BOOK ID - 135313005 TI - School class size : research and policy. AU - Cahen, Leonard S. AU - Glass, Gene V. AU - Smith, Mary Lee PY - 1982 SN - 0803918054 PB - Beverly Hills Sage DB - UniCat KW - Class size UR - https://www.unicat.be/uniCat?func=search&query=sysid:135313005 AB - ER -