00290nam a2200109Ia 4500080001800000100002200018245005800040250001200098260003400110300001700144583001900161 a12.09.01 F939 aFrost, Michael J. aHow to use cost benefit analysis in project appraisal a2nd ed. bGower P.aFarnboroughGBc1975 axiii, 202 p. c12/10/04kJOYD