Cita APA (7th ed.)

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.