SpringerLink (Online service), Nijkamp, P., Rose, A., & Kourtit, K. (2015). Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer.
Lua i Stíl Chicago (17ú heag.)SpringerLink (Online service), Peter Nijkamp, Adam Rose, agus Karima Kourtit. Regional Science Matters: Studies Dedicated to Walter Isard. Cham: Springer International Publishing : Imprint: Springer, 2015.
Lua MLA (8ú heag.)SpringerLink (Online service), et al. Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.