APA (7th ed.) Citation

Wolpe, B. C. (1990). Lobbying Congress: How the system works. Congressional Quarterly.

Chicago Style (17th ed.) Citation

Wolpe, Bruce C. Lobbying Congress: How the System Works. Washington, DC: Congressional Quarterly, 1990.

MLA (9th ed.) Citation

Wolpe, Bruce C. Lobbying Congress: How the System Works. Congressional Quarterly, 1990.