ADLER, M. J. [. (1976). The annals of Americana vol 13: 1905-1915 the progressive era. Encyclopaedia Britannica.
Chicago-čujuhus (17. p.)ADLER, Mortimes J. [Ed.]. The Annals of Americana Vol 13: 1905-1915 the Progressive Era. Chicago: Encyclopaedia Britannica, 1976.
MLA-čujuhus (9. p.)ADLER, Mortimes J. [Ed.]. The Annals of Americana Vol 13: 1905-1915 the Progressive Era. Encyclopaedia Britannica, 1976.
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