Elkins, T. H. (1973). The urban explosion. Macmillan.
Cita Chicago (17th ed.)Elkins, Thomas Henry. The Urban Explosion. London: Macmillan, 1973.
Cita MLA (8th ed.)Elkins, Thomas Henry. The Urban Explosion. Macmillan, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.