Langley, Andrew J
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OER 

A Field Guide for Academic Librarians  Open textbook library
 
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2

Annual report of the Board of Regents of the Smithsonian In.. 

United States congressional serial set ; serial set no. 4188;House document / 56th Congress, 2nd session. House ; no. 537, pt. 1
 
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3

OER 

a field guide for academic librarians 
 
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