Balasubramanyan, V. N., & Bates, J. M. (1993). Topics in policy appraisal. St. Martin's Press.
Dyfyniad Arddull ChicagoBalasubramanyan, V. N., and John Maynard Bates. Topics in Policy Appraisal. New York: St. Martin's Press, 1993.
Dyfyniad MLABalasubramanyan, V. N., and John Maynard Bates. Topics in Policy Appraisal. St. Martin's Press, 1993.
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