APA (7th ed.) Citation

Silk, P., & Walters, R. (1991). How parliament works (2. ed., 2. impr.). Longman.

Chicago Style (17th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 2. ed., 2. impr. London [u.a.]: Longman, 1991.

MLA (9th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 2. ed., 2. impr. Longman, 1991.