Document Type : Original Article
. (1998). . Library and Information Sciences, 1(3), 121-123.
. "", Library and Information Sciences, 1, 3, 1998, 121-123.
. (1998). '', Library and Information Sciences, 1(3), pp. 121-123.
, "," Library and Information Sciences, 1 3 (1998): 121-123,
. . LIS. 1998;1(3):121-123 (In Persian).
