@BOOK{ Book!D - 104414039,
AUTHOR = "A.J. Ayer,Title",
TITLE = "The problem of knowledge",
LIBRARY= "کتابخانه و مرکز اطلاع رسانی شیخ بهائی (دفتر تبليغات اسلامی حوزه علميه خراسان)",
SUBJECT = "Knowledge, Theory of",
URL = "/book/104414039/The-problem-of-knowledge/"}