Focus on Grammar 4 : an Integated Skill Approach /
Marjorie Fuchs, Margaret Bonner
- Third Edition.
- America : Person Longman, 2007.
- 42 Pages : Illustrations : 26 cm.
9780131912364 9780131912366
English language --Textbooks for foreign speakers English language --Grammar Anglais (Langue) --Manuels pour allophones--Problems, exercises