Ferguson, C., & Freps, J. M. (1965). Principles of economics. New York: Holt, Rinehart and Winston.
Čikaški stil citiranjaFerguson, C.E., i Juanita M. Freps. Principles of Economics. New York: Holt, Rinehart and Winston, 1965.
MLA način citiranjaFerguson, C.E., i Juanita M. Freps. Principles of Economics. New York: Holt, Rinehart and Winston, 1965.
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