TY  - BOOK
TI  - Building English skills: purple level 
SN  - 0883434725
U1  - 418 B932 1977 
PY  - 1977///
CY  - Evanston
PB  - McDougal, Littel & Company
KW  - Grammar
KW  - Structural linguistics
N1  - Includes sources and index
ER  -