APA-ийн эшлэл(7 дахь хэвлэлт)

Hassler, W. W. (2010). The first day at Gettysburg: Crisis at the crossroads. University of Alabama Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Hassler, Warren W. The First Day at Gettysburg: Crisis at the Crossroads. Tuscaloosa, Ala.: University of Alabama Press, 2010.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Hassler, Warren W. The First Day at Gettysburg: Crisis at the Crossroads. University of Alabama Press, 2010.