@BOOK{ Book!D - 103429205,
AUTHOR = "/ John Bryant and Chris Sangwin",
TITLE = "How round is your circle?",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه شهيد چمران",
SUBJECT = "Engineering mathematics.,Geometry, Plane.,Geometry, Algebraic.,Geometrical models.",
URL = "/book/103429205/How-round-is-your-circle/"}