R P Verma. (2012). Classification system in library collection. ALP Books.
Chicago Edition CitationR P Verma. Classification System in Library Collection. New Delhi: ALP Books, 2012.
ציטוט MLAR P Verma. Classification System in Library Collection. ALP Books, 2012.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.