Cita APA (7th ed.)

Simonds, J. O. (1994). Garden cities 21: Creating a livable urban environment. McGraw-Hill.

Cita Chicago (17th ed.)

Simonds, John Ormsbee. Garden Cities 21: Creating a Livable Urban Environment. New York: McGraw-Hill, 1994.

Cita MLA (9th ed.)

Simonds, John Ormsbee. Garden Cities 21: Creating a Livable Urban Environment. McGraw-Hill, 1994.