American Quarter Horse Association. (1941). Official stud book and registry of the American Quarter Horse Association. AQHA.
Chicago-Zitierstil (17. Ausg.)American Quarter Horse Association. Official Stud Book and Registry of the American Quarter Horse Association. Fort Worth, Tex.: AQHA, 1941.
MLA-Zitierstil (8. Ausg.)American Quarter Horse Association. Official Stud Book and Registry of the American Quarter Horse Association. AQHA, 1941.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.