Spencer, B. D. (1980). Benefit-cost analysis of data used to allocate funds. Springer- Verlag.
शिकागो स्टाइल उद्धरणSpencer, Bruce D. Benefit-cost Analysis of Data Used to Allocate Funds. New York: Springer- Verlag, 1980.
एमएलए उद्धरणSpencer, Bruce D. Benefit-cost Analysis of Data Used to Allocate Funds. Springer- Verlag, 1980.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.