APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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