Peter Nijkamp. (1987). Regional Economics. ELSEVIER.
Chicago Style aipamenaPeter Nijkamp. Regional Economics. ELSEVIER, 1987.
MLA aipamenaPeter Nijkamp. Regional Economics. ELSEVIER, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Peter Nijkamp. (1987). Regional Economics. ELSEVIER.
Chicago Style aipamenaPeter Nijkamp. Regional Economics. ELSEVIER, 1987.
MLA aipamenaPeter Nijkamp. Regional Economics. ELSEVIER, 1987.