@BOOK{ Book!D - 98972109,
AUTHOR = "/ Betty Schrampfer Azar,Azar",
TITLE = "Understanding and using English grammar",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "English Language -- Textbooks for Foreign speakers,English Language -- Grammar -- 1950 -",
URL = "/book/98972109/Understanding-and-using-English-grammar/"}