Samuelson Paul. (1973). The Samuelson Sampler (In lần thứ 1.). New Jersey: Thomas Horton and Company.
Trích dẫn kiểu ChicagoSamuelson Paul. The Samuelson Sampler. In lần thứ 1. New Jersey: Thomas Horton and Company, 1973.
ציטוט MLASamuelson Paul. The Samuelson Sampler. In lần thứ 1. New Jersey: Thomas Horton and Company, 1973.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.