Historical atlas of US presidential elections, 1788-2004 / J. Clark Archer, Stephen
J. Lavin, Kenneth C. Martis and Fred M. Shelley. CQ Press, 2006
The historical atlas of United States Congressional districts, 1789-1983 / author
and editor, Kenneth C. Martis ; cartographer and assistant editor, Ruth Anderson Rowles
; compilation draftsmen, David Durham, Brian Raber, Thomas Kokernak ; research assistants,
Rowland Dent ... [et al.], 1982.