Cita APA (7a ed.)

Sperry, A. F., Urwin, C. K., & Urwin, G. J. W. (1999). History of the 33d Iowa Infantry Volunteer Regiment, 1863-6. University of Arkansas Press.

Cita Chicago Style (17a ed.)

Sperry, A. F., Cathy Kunzinger Urwin, y Gregory J. W. Urwin. History of the 33d Iowa Infantry Volunteer Regiment, 1863-6. Fayetteville: University of Arkansas Press, 1999.

Cita MLA (8a ed.)

Sperry, A. F., et al. History of the 33d Iowa Infantry Volunteer Regiment, 1863-6. University of Arkansas Press, 1999.