?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Susan&rft.au=Hallam%2C+Susan&rft.aulast=Hallam&rft.issn=1743-727X&rft.issue=20&rft.date=April+2008&rft.volume=31&rft.title=International+Journal+of+Research+and+Method+in+Education&rft.atitle=Ability+grouping+in+the+secondary+school%3A+attitude+of+teachers+of+practically+based+subjects&rft.pages=181-192&rft.genre=article