?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=McLean%2C+Barbara+M+L&rft.aulast=McLean&rft.aufirst=Barbara+M+L&rft.date=2002&rft.title=The+use+of+feed+blocks+as+supplementation+for+the+upland+hill+flock%3A+(2)+Cost+effective+lamb+production&rft.genre=proceeding