Merkoša sitáhtat

APA-čujuhus (7. p.)
ProQuest (Firm), Farace, D. J., & Schopfel, J. (2010). Grey literature in library and information studies. De Gruyter Saur.
Chicago-čujuhus (17. p.)
ProQuest (Firm), Dominic John Farace, juo Joachim Schopfel. Grey Literature in Library and Information Studies. Berlin ; New York: De Gruyter Saur, 2010.
MLA-čujuhus (9. p.)
ProQuest (Firm), et al. Grey Literature in Library and Information Studies. De Gruyter Saur, 2010.
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