Lankes, D. R. e. (2008). Virtual reference service: From competencies to assessment. Facet.
Chicago Edition CitationLankes, David R...[et.al]; ed. Virtual Reference Service: From Competencies to Assessment. London: Facet, 2008.
MLA Edition CitationLankes, David R...[et.al]; ed. Virtual Reference Service: From Competencies to Assessment. Facet, 2008.
Warning: These citations may not always be 100% accurate.