توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Pennings, J. M. E. (1998). The market for hedging services: A marketing-finance approach with special reference to rights futures contracts. Wageningen Agricultural University ; Distribution, Backhuys Publishers.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Pennings, Joost M. E. The Market for Hedging Services: A Marketing-finance Approach with Special Reference to Rights Futures Contracts. Wageningen : Leiden: Wageningen Agricultural University ; Distribution, Backhuys Publishers, 1998.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Pennings, Joost M. E. The Market for Hedging Services: A Marketing-finance Approach with Special Reference to Rights Futures Contracts. Wageningen Agricultural University ; Distribution, Backhuys Publishers, 1998.