Document Type : Original Article
. (1999). . Library and Information Sciences, 2(2), 149-150.
. "", Library and Information Sciences, 2, 2, 1999, 149-150.
. (1999). '', Library and Information Sciences, 2(2), pp. 149-150.
, "," Library and Information Sciences, 2 2 (1999): 149-150,
. . LIS. 1999;2(2):149-150 (In Persian).
