@BOOK{ Book!D - 100397797,
AUTHOR = "Robert Lucas",
TITLE = "Mastering prolog",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه زنجان",
SUBJECT = "، Prolog )computer program language(",
URL = "/book/100397797/Mastering-prolog/"}