Kuipers, L. The 21st century digital library: A guide to finding free e-books, magazines, newspapers and audiobooks and transferring them to your digital devices.
Chicago Style (17th ed.) CitationKuipers, Lynnette. The 21st Century Digital Library: A Guide to Finding Free E-books, Magazines, Newspapers and Audiobooks and Transferring Them to Your Digital Devices. Northwest Digital Publishing, c2012.
ציטוט MLAKuipers, Lynnette. The 21st Century Digital Library: A Guide to Finding Free E-books, Magazines, Newspapers and Audiobooks and Transferring Them to Your Digital Devices.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.