APA (7 वां संस्करण) प्रशस्ति पत्र

Donaldson, D. J., Sader, F., & Wagle, D. M. (1997). Foreign direct investment in infrastructure: The challenge of Southern and Eastern Africa. World Bank.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Donaldson, David J., Frank Sader, और Dileep M. Wagle. Foreign Direct Investment in Infrastructure: The Challenge of Southern and Eastern Africa. Washington, D.C: World Bank, 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Donaldson, David J., et al. Foreign Direct Investment in Infrastructure: The Challenge of Southern and Eastern Africa. World Bank, 1997.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.