APA (7th ed.) Citation

Silk, P., & Walters, R. (1998). How parliament works (4. ed.). Longman.

Chicago Style (17th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 4. ed. London [u.a.]: Longman, 1998.

MLA (9th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 4. ed. Longman, 1998.