Tolley, G. S. (1985). The economics of R and D policy. NewYork: Preager.
Chicago Style CitationTolley, George S. The Economics of R and D Policy. NewYork: Preager, 1985.
Cita MLATolley, George S. The Economics of R and D Policy. NewYork: Preager, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.