^ abWilson, Stewart (1986). "1970". In Howard, Graham (ed.). The Official 50-race history of the Australian Grand Prix. Gordon, NSW: R & T Publishing. pp. 346–352. ISBN0-9588464-0-5.
^Wilson indicates that, in addition to six Formula 5000 cars, there were "seven 2.5-litre Formula cars and seven Formula 2 cars". The Manual of Motor Sport published by the Confederation of Australian Motor Sport for 1970 includes in its listing of Australian Formulae, entries for "Australian Formula 1 (AF1) (Capacity : Up to and including 2,500 c.c.)" and "Australian Formula 2 (AF2) (Capacity : Up to and including 1,600 c.c.)"