&. (2009). Cataloguing with AACR 2 & MARC 21: For books, electronic resources, sound recordings, video recording and serial (2.). Pentogon.
Dyfyniad Arddull Chicago&. Cataloguing with AACR 2 & MARC 21: For Books, Electronic Resources, Sound Recordings, Video recording and Serial. 2. New Delhi: Pentogon, 2009.
Dyfyniad MLA&. Cataloguing with AACR 2 & MARC 21: For Books, Electronic Resources, Sound Recordings, Video recording and Serial. 2. Pentogon, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.