APA (7th ed.) Citation

Silk, P., & Walters, R. (1999). How Parliament works (4. ed., 3. impr.). Longman.

Chicago Style (17th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 4. ed., 3. impr. London [u.a.]: Longman, 1999.

MLA (9th ed.) Citation

Silk, Paul, and Rhodri Walters. How Parliament Works. 4. ed., 3. impr. Longman, 1999.