People Samuel Rothstein Samuel Rothstein was a Professor, School of Librarianship, University of British Columbia, Vancouver, Canada. Samuel Rothstein proposed Minimum, Middling, as well as Maximum Theory of Reference Service inwards 1960. Buat lebih berguna, kongsi: 1.2k Google Facebook Twitter Trending Kini:Allen KentArcot Lakshmanaswami MudaliarAlvin TofflerAllen Foster
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