^Ross, Edgar (1988). These Things Shall Be! : Bob Ross, Socialist Pioneer, His Life and Times. West Ryde, N.S.W.: Mulavon Publishing. p. 13. (ردمك 0-85899-040-7).
^Evans, Raymond (1988). The Red Flag Riots: A Study of Intolerance. St. Lucia: University of Queensland Press. p. 116. (ردمك 0-7022-2073-6).