International Geographical Congress, 23rd :1976 (Moscow, Russia). (1976). International geography '76.
Style de citation Chicago (17e éd.)International Geographical Congress, 23rd :1976 (Moscow, Russia). International Geography '76. 1976.
Style de citation MLA (9e éd.)International Geographical Congress, 23rd :1976 (Moscow, Russia). International Geography '76. 1976.
Attention : ces citations peuvent ne pas être correctes à 100%.