BerryB.J.L.1967: Geography of market centres and retail distribution. Englewood Cliffs, NJ: Prentice-Hall.
2.
ThomasC.J.1976: Socio spatial differentiation and the use of services. In HerbertD.T.JohnstonR.J., editors, Social areas in cities, Volume II: Spatial perspectives on problems and policies, Chichester: John Wiley.
