APA-viite (7. p.)
Gottheil, F. M. (1996). Principles of economics (ed.). South Western College Publishing.
Chicago-viite (17. p.)
Gottheil, Fred M. Principles of Economics. ed. Ohio: South Western College Publishing, 1996.
MLA-viite (9. p.)
Gottheil, Fred M. Principles of Economics. ed. South Western College Publishing, 1996.
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