@BOOK{ Book!D - 99048056,
AUTHOR = "/ /By/Edith Watson Schipper and Edward Schuh,Schipper",
TITLE = "A first course in modern logic",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "Logic, Symbolic and mathematical",
URL = "/book/99048056/A-first-course-in-modern-logic/"}