American Bar Association. Section of Administrative Law and Regulatory Practice & Luneburg, W. V. (1998). The lobbying manual: A compliance guide for lawyers and lobbyists (2nd ed.). Section of Administrative Law and Regulatory Practice, American Bar Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Bar Association. Section of Administrative Law and Regulatory Practice και William V. Luneburg. The Lobbying Manual: A Compliance Guide for Lawyers and Lobbyists. 2nd ed. Chicago: Section of Administrative Law and Regulatory Practice, American Bar Association, 1998.
Παραπομπή σε μορφή MLA (8th εκδ.)American Bar Association. Section of Administrative Law and Regulatory Practice και William V. Luneburg. The Lobbying Manual: A Compliance Guide for Lawyers and Lobbyists. 2nd ed. Section of Administrative Law and Regulatory Practice, American Bar Association, 1998.