APA-viite (7. p.)

Thoman, R. S. (1974). The geography of economic activity (3rd ed.). McGraw-Hill.

Chicago-viite (17. p.)

Thoman, Richard S. The Geography of Economic Activity. 3rd ed. New York: McGraw-Hill, 1974.

MLA-viite (9. p.)

Thoman, Richard S. The Geography of Economic Activity. 3rd ed. McGraw-Hill, 1974.

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