Thias Hans H Cost-benefit analysis in education A case study Thias Hans H; Carnoy Martin - Baltimore Johns Hopkins 1972 - xv, 193p. Bib p 191-93 cm. - International Bank of Reconstruction and Development : World Bank Staff Occasional Paper. 14 . ISBN: 0801813352 Source: General Book Subjects--Topical Terms: Security Dewey Class. No.: X652910b(T).687.N7, L2