APA (7 वां संस्करण) प्रशस्ति पत्र

Vijverberg, W. P. (1988). Profits from self-employment: A case study of Cote d'Ivoire. World Bank.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Vijverberg, Wim P.M. Profits from Self-employment: A Case Study of Cote D'Ivoire. Washington: World Bank, 1988.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Vijverberg, Wim P.M. Profits from Self-employment: A Case Study of Cote D'Ivoire. World Bank, 1988.