TY - JOUR JF - publij.ir JO - Research on Information Science and Public Libraries VL - 2 IS - 1 PY - 1992 Y1 - 1992/4/01 TI - TT - مفهوم کتاب مرجع N2 - SP - 22 EP - 24 AD - UR - http://publij.ir/article-1-405-fa.html ER -