SpringerLink (Online service), Nijkamp, P., Rose, A., & Kourtit, K. (2015). Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer.
Chicago-referens (17:e uppl.)SpringerLink (Online service), Peter Nijkamp, Adam Rose, och Karima Kourtit. Regional Science Matters: Studies Dedicated to Walter Isard. Cham: Springer International Publishing : Imprint: Springer, 2015.
MLA-referens (8:e uppl.)SpringerLink (Online service), et al. Regional Science Matters: Studies Dedicated to Walter Isard. Springer International Publishing : Imprint: Springer, 2015.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.