المراجع الأساسية
-
(1)
Cole, J. P., “Geography of the U. S. S. R.”, Pelican 1967.
-
(2)
Dury, G. H. & K. Mathieson, “The United States and Canada” London 1970.
-
(3)
Gottmann. I. A., “A Geography of Europe” London 1955.
-
(4)
Hoffman, C. W., “A Georgraphy of Europe” London 1953.
-
(5)
Hooson, D. J. M., “The Soviet Union” London 1966.
-
(6)
Mâlmstrom, V. H., “Norden: Gross roads of Destiny” New York 1965.
-
(7)
Melvyn Howe, G.,“The Soviet Union” London 1968.
-
(8)
O’ Dell, A. C., “The Scandinavian World” London 1960.
-
(9)
Paderin, G., “Siberia, past and present” Moscow 1961.
-
(10)
Pierre George, “L’ U. R. S. S.” Paris 1962.
-
(11)
Somme, A., “A Geography of Nordén” New York 1961.
-
(12)
Stefan, F., “Vatna Joekull, Island faehrten” Wien 1958.
