00478nam a2200133Ia 4500008004100000082002000041100002800061245004500089260004100134300001500175942001200190952012500202999001700327260223b        |||||||| |||| 00| 0 eng d  a658.57bC552.ER  aChowdhury, P. N.915991  aEconomics of research and developmentb/  aNew Delhi:bPopular Prakashan,c1973  axiv, 163p.  2ddccBK  0010406658_570000000000000_C552_ER70913219aISIbISId1998-09-14l0o658.57 C552.ERpDP7559r2019-02-14 00:00:00yBK  c10744d10744