Belli, P. (2001). Economic analysis of investment operations: Analytical tools and practical applications. the international bank for reconstrucion and development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBelli, Pedro. Economic Analysis of Investment Operations: Analytical Tools and Practical Applications. Washington: the international bank for reconstrucion and development, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBelli, Pedro. Economic Analysis of Investment Operations: Analytical Tools and Practical Applications. the international bank for reconstrucion and development, 2001.