Heinritz, S. F., & Farrell, P. V. (1965). Purchasing: Principles and applications (Fourth edition.). Alemar Phoenix Publishers.
Chicago Style (17th ed.) CitationHeinritz, Stuart F., and Paul V. Farrell. Purchasing: Principles and Applications. Fourth edition. Quezon City: Alemar Phoenix Publishers, 1965.
ציטוט MLAHeinritz, Stuart F., and Paul V. Farrell. Purchasing: Principles and Applications. Fourth edition. Alemar Phoenix Publishers, 1965.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.