Dyfyniad APA

American Quarter Horse Association. (1941). Official stud book and registry of the American Quarter Horse Association. AQHA.

Dyfyniad Arddull Chicago

American Quarter Horse Association. Official Stud Book and Registry of the American Quarter Horse Association. Fort Worth, Tex.: AQHA, 1941.

Dyfyniad MLA

American Quarter Horse Association. Official Stud Book and Registry of the American Quarter Horse Association. AQHA, 1941.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.