Spencer, B. D. (1980). Benefit - cost analysis of data used to allocate fund. Springer.
Cita Chicago (17th ed.)Spencer, Bruce D. Benefit - Cost Analysis of Data Used to Allocate Fund. New York: Springer, 1980.
Cita MLA (9th ed.)Spencer, Bruce D. Benefit - Cost Analysis of Data Used to Allocate Fund. Springer, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.