Bailey, Stephen K.
Henry Holt, 1952
Buku Teks
Editor by Lawrence C.Dood; Bruce I. Oppenheimer
Congressional Quarterly Press, 1981
Buku Teks
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, Legislative bodies
Buku Referensi
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
Buku Referensi
editor in-chief, Joel H. Silbey
Charles Scribner`s Sons, 1994
Buku Referensi