@BOOK{ Book!D - 91706651,
AUTHOR = "Polya, George",
TITLE = "Problems and theorems in analysis",
LIBRARY= "کتابخانه مرکزی دانشگاه صنعتی امیرکبیر",
SUBJECT = " Mathematical analysis - Problems, exercises, etc  ",
URL = "/book/91706651/Problems-and-theorems-in-analysis/"}