Document Type : Original Article
. (1999). . Library and Information Sciences, 2(4), 153-156.
. "", Library and Information Sciences, 2, 4, 1999, 153-156.
. (1999). '', Library and Information Sciences, 2(4), pp. 153-156.
, "," Library and Information Sciences, 2 4 (1999): 153-156,
. . LIS. 1999;2(4):153-156 (In Persian).
