APA (7th ed.) Citation

Silk, P., & Walters, R. H. (1995). How Parliament works (3rd ed.). Longman.

Chicago Style (17th ed.) Citation

Silk, Paul, and R. H. Walters. How Parliament Works. 3rd ed. London ; New York: Longman, 1995.

MLA (9th ed.) Citation

Silk, Paul, and R. H. Walters. How Parliament Works. 3rd ed. Longman, 1995.