Davidson, Roger H.; Oleszek, Walter J.; Lee, Frances E.; Schickler, Eric (July 2017). Congress and its members (16th ed.). Thousand Oaks, CA. ISBN978-1-5063-6973-0. OCLC961410670. OL27411806M.{{cite book}}: CS1 maint: location missing publisher (link)
Brian Crisp; Christopher Kam; Thad Kousser; Frances E. Lee (eds.). "General & Introductory Political Science". Legislative Studies Quarterly. 43. eISSN1939-9162. ISSN0362-9805.
Davidson, Roger H.; Oleszek, Walter J.; Lee, Frances E.; Schickler, Eric (July 2017). Congress and its members (16th ed.). Thousand Oaks, CA. ISBN978-1-5063-6973-0. OCLC961410670. OL27411806M.{{cite book}}: CS1 maint: location missing publisher (link)