Cita APA (7th ed.)
ebrary, Inc, Graber, D. S., & Birmingham, K. A. (2009). Urban planning in the 21st century. Nova Science Publishers.
Cita Chicago (17th ed.)
ebrary, Inc, Daniel S. Graber, i Kenneth A. Birmingham. Urban Planning in the 21st Century. Hauppauge, N.Y.: Nova Science Publishers, 2009.
Cita MLA (9th ed.)
ebrary, Inc, et al. Urban Planning in the 21st Century. Nova Science Publishers, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.