APA aipamena

Tolley, G. S. (1985). The economics of R and D policy. NewYork: Preager.

Chicago Style aipamena

Tolley, George S. The Economics of R and D Policy. NewYork: Preager, 1985.

MLA aipamena

Tolley, George S. The Economics of R and D Policy. NewYork: Preager, 1985.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.