American Institute of Cooperation. American cooperation: A collection of papers and discussions. 1st session ; 1925. s.n.
Chicago-viite (17. p.)American Institute of Cooperation. American Cooperation: A Collection of Papers and Discussions. 1st Session ; 1925. Washington: s.n.
MLA-viite (9. p.)American Institute of Cooperation. American Cooperation: A Collection of Papers and Discussions. 1st Session ; 1925. s.n.
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