Barsch, T. M. (1977). Colorado Public Libraries, 1876-1976, Historical Sketches.
Cita Chicago Style (17a ed.)Barsch, Terttu M. Colorado Public Libraries, 1876-1976, Historical Sketches. 1977.
Cita MLA (9a ed.)Barsch, Terttu M. Colorado Public Libraries, 1876-1976, Historical Sketches. 1977.
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