Ferguson, C., & Freps, J. M. (1965). Principles of economics. New York: Holt, Rinehart and Winston.
Trích dẫn kiểu ChicagoFerguson, C.E., và Juanita M. Freps. Principles of Economics. New York: Holt, Rinehart and Winston, 1965.
ציטוט MLAFerguson, C.E., và Juanita M. Freps. Principles of Economics. New York: Holt, Rinehart and Winston, 1965.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.