After the Desk: Reference Service in a Changing Information Landscape
2010 ◽
Vol 30
(4)
◽
pp. 130-140
1990 ◽
Vol 11
(25-26)
◽
pp. 173-190
◽
1997 ◽
Vol 29
(2)
◽
pp. 255-261
◽
1986 ◽
Vol 3
(2)
◽
pp. 117-132
◽