APA-Zitierstil (7. Ausg.)

Howlett, M., Ramesh, M., & Perl, A. (2020). Studying public policy: Principles and processes (Fourth edition.). Oxford University Press.

Chicago-Zitierstil (17. Ausg.)

Howlett, Michael, M. Ramesh, und Anthony Perl. Studying Public Policy: Principles and Processes. Fourth edition. Don Mills, Ontario: Oxford University Press, 2020.

MLA-Zitierstil (9. Ausg.)

Howlett, Michael, et al. Studying Public Policy: Principles and Processes. Fourth edition. Oxford University Press, 2020.