TY  - RPRT
TI  - Metropolitan concentration in developing countries.
AU  - G Petrakos
AU  - J C Brada
PY  - 1989
DO  - 10.1111/j.1467-6435.1989.tb01274.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12282888/
ID  - 12282888
ER  -