John B. Armstrong Texas Ranger and pioneer ranchman
MLA
Parsons, Chuck. John B. Armstrong: Texas Ranger and Pioneer Ranchman. College Station: Texas A&M University Press, 2007
APA, 7th edition
Parsons, C. (2007). John B. Armstrong: Texas Ranger and pioneer ranchman. College Station: Texas A&M University Press
Chicago, 17th edition
Parsons, Chuck. John B. Armstrong: Texas Ranger and pioneer ranchman. College Station: Texas A&M University Press, 2007