@BOOK{ Book!D - 91707357,
AUTHOR = "Klamkin, Murray S.",
TITLE = "U.S.A. mathematical olympiads 1972-1986",
LIBRARY= "کتابخانه مرکزی دانشگاه صنعتی امیرکبیر",
SUBJECT = " Mathematics - Problems, exercises, etc  , Mathematics - Competitions - United States  ",
URL = "/book/91707357/USA-mathematical-olympiads-19721986/"}