Não informado. (1911). Annals of the Association of American Geographers. Association of American Geographers.
Citace podle Chicago (17th ed.)Não informado. Annals of the Association of American Geographers. Washington: Association of American Geographers, 1911.
Citace podle MLA (8th ed.)Não informado. Annals of the Association of American Geographers. Association of American Geographers, 1911.
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