APA (7th ed.) Citation

Gabbard, S. V., & Holzer, H. 1863: Lincoln's pivotal year.

Chicago Style (17th ed.) Citation

Gabbard, Sara Vaughn, and Harold Holzer. 1863: Lincoln's Pivotal Year.

MLA (9th ed.) Citation

Gabbard, Sara Vaughn, and Harold Holzer. 1863: Lincoln's Pivotal Year.

Warning: These citations may not always be 100% accurate.