APA-viite (7. p.)
Spruill, M. (2011). Decisions at Gettysburg: The nineteen critical decisions that defined the campaign. University of Tennessee Press.
Chicago-viite (17. p.)
Spruill, Matt. Decisions at Gettysburg: The Nineteen Critical Decisions That Defined the Campaign. Knoxville: University of Tennessee Press, 2011.
MLA-viite (9. p.)
Spruill, Matt. Decisions at Gettysburg: The Nineteen Critical Decisions That Defined the Campaign. University of Tennessee Press, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.