SpringerLink (Online service), Nijkamp, P., Rose, A., & Kourtit, K. (2015). Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer.
Chicago Style aipamenaSpringerLink (Online service), Peter Nijkamp, Adam Rose, and Karima Kourtit. Regional Science Matters: Studies Dedicated to Walter Isard. Cham: Springer International Publishing : Imprint: Springer, 2015.
MLA aipamenaSpringerLink (Online service), et al. Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.