00370nam a2200109 a 450000500170000002000150001708200180003210000210005024501220007126000430019330000240023620251203091244.0  a0080229999  a307.7609bGEO  aChadwick, George  aModels of Urban nad Regional Systems in Developing CountriesbSome Theories and Their Applicaion in Physical Planning  aOxford, New YorkbPergamon Pressc1987  axv,322p.c20 cm. PB