Cita APA (7th ed.)
Greenway, R., & Monsma, T. M. (1989). Cities: Missions' new frontier. Baker.
Cita Chicago (17th ed.)
Greenway, Roger, i Timothy M. Monsma. Cities: Missions' New Frontier. Grand Rapids, MI: Baker, 1989.
Cita MLA (9th ed.)
Greenway, Roger, i Timothy M. Monsma. Cities: Missions' New Frontier. Baker, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.