@BOOK{ Book!D - 93046758,
AUTHOR = "/ Edward John Specht, Harold Trainer Jones, Keith G. Calkins, Donald H. Rhoads.",
TITLE = "Euclidean geometry and its subgeometries",
LIBRARY= "کتابخانه مرکزی و مرکز اطلاع رسانی دانشگاه محقق اردبیلی ره",
SUBJECT = " Geometry.,Mathematics.,History.",
URL = "/book/93046758/Euclidean-geometry-and-its-subgeometries/"}