Cita APA (7a ed.)
Gottheil, F. M. (1996). Principles of economics. South-Western College.
Cita Chicago Style (17a ed.)
Gottheil, Fred M. Principles of Economics. Illinois: South-Western College, 1996.
Cita MLA (9a ed.)
Gottheil, Fred M. Principles of Economics. South-Western College, 1996.
Precaución: Estas citas no son 100% exactas.