Edited by Hoffman, G. W., & Contributing authors , B. D. ,. o. (1969). A geography of Europe: Including Asiatic U. S. S. R (3rd ed.). Ronald Press Co.
Chicago-viite (17. p.)Edited by Hoffman, George W., ja Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. New York: Ronald Press Co, 1969.
MLA-viite (9. p.)Edited by Hoffman, George W., ja Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. Ronald Press Co, 1969.
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