Parsons, C. (2007). John B. Armstrong, Texas Ranger and Pioneer Ranchman: Lawman and Rancher. Texas A&M University Press.
Cita Chicago Style (17a ed.)Parsons, Chuck. John B. Armstrong, Texas Ranger and Pioneer Ranchman: Lawman and Rancher. College Station: Texas A&M University Press, 2007.
Cita MLA (8a ed.)Parsons, Chuck. John B. Armstrong, Texas Ranger and Pioneer Ranchman: Lawman and Rancher. Texas A&M University Press, 2007.
Precaución: Estas citas no son 100% exactas.