Não informado. (1970). Review of Regional Studies. Southern Regional Science Association.
Chicago-referens (17:e uppl.)Não informado. Review of Regional Studies. Birmingham, Ala: Southern Regional Science Association, 1970.
MLA-referens (8:e uppl.)Não informado. Review of Regional Studies. Southern Regional Science Association, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.