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.
Cita Chicago (17th ed.)Edited by Hoffman, George W., i Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. New York: Ronald Press Co, 1969.
Cita MLA (9th ed.)Edited by Hoffman, George W., i Brunnschweiler Dieter ,and others Contributing authors. A Geography of Europe: Including Asiatic U. S. S. R. 3rd ed. Ronald Press Co, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.