@BOOK{ Book!D - 100404024,
AUTHOR = "Hughes,G,E.",
TITLE = "A New introduction to modal logic",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه زنجان",
SUBJECT = "tiladoMA)cigoL(",
URL = "/book/100404024/A-New-introduction-to-modal-logic/"}