Wain, Phil (2020), «The North West; A History», Classic Racer (Mortons Motorcycle Media Ltd), ISSN1470-4463, «Racing resumed in 1964 with Creith and Bryans taking victories and three years later Fred Stevens gave Italian designer Guiseppi Paton and his collaborator Bill Hannah one of their finest hours when he took a 350cc-500cc Double.».
Wain, Phil (2020), «The North West; A History», Classic Racer (Mortons Motorcycle Media Ltd), ISSN1470-4463, «Racing resumed in 1964 with Creith and Bryans taking victories and three years later Fred Stevens gave Italian designer Guiseppi Paton and his collaborator Bill Hannah one of their finest hours when he took a 350cc-500cc Double.».