Understanding and using English grammar. workbook :
Betty Schrampfer Azar.
- 3rd ed.
- White Plains, N.Y. : Longman, c2000.
- xi, 238, 39, 8 p. : ill. ; 26 cm.
Includes index.
0139586873
English language--Textbooks for foreign speakers. English language--Grammar--Problems, exercises, etc.