@BOOK{ Book!D - 77734943,
AUTHOR = "Alvarez, E. Charles",
TITLE = "......................",
LIBRARY= "کتابخانه مرکزی و مرکز اطلاع رسانی دانشگاه فردوسی مشهد",
SUBJECT = "Problems, exercises, etc ، Electronics,Slide-rule",
URL = "/book/77734943//"}