@BOOK{ Book!D - 99022869,
AUTHOR = "/ by Clement V. Durell,Durell",
TITLE = "A new geometry for schools",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "Geometry-- Study and teaching",
URL = "/book/99022869/A-new-geometry-for-schools/"}