Cita APA (7a ed.)

Newland, K. (1980). City limits: Emerging constraints on urban growth. Worldwatch Institute.

Cita Chicago Style (17a ed.)

Newland, Kathleen. City Limits: Emerging Constraints on Urban Growth. Washington, DC: Worldwatch Institute, 1980.

Cita MLA (9a ed.)

Newland, Kathleen. City Limits: Emerging Constraints on Urban Growth. Worldwatch Institute, 1980.