TY - BOOK AU - Lloyd,Mark TI - Active grammar: without answers SN - 9780521152471 AV - PE 1112 .L793 2011 U1 - M 428.2 PY - 2011/// CY - Cambridge, New York PB - Cambridge University Press N1 - College; 1210L-1700L UR - http://www.loc.gov/catdir/enhancements/fy1215/2012454017-d.html ER -