Cita APA (7th ed.)

Campbell, H. E., & Corley, E. A. (2012). Urban environmental policy analysis. M.E. Sharpe.

Cita Chicago (17th ed.)

Campbell, Heather E., i Elizabeth A. Corley. Urban Environmental Policy Analysis. Armonk, N.Y.: M.E. Sharpe, 2012.

Cita MLA (8th ed.)

Campbell, Heather E., i Elizabeth A. Corley. Urban Environmental Policy Analysis. M.E. Sharpe, 2012.