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Clute, John (26 April 2019). "Bullivant, Cecil H."The Encyclopedia of Science Fiction. Archived from the original on 17 June 2019. Retrieved 6 May 2020.
Clute, John; Ashley, Mike (27 November 2018). "Shaw, Frank H". The Encyclopedia of Science Fiction. Archived from the original on 30 August 2017. Retrieved 6 May 2020.
Carrigan, Belinda (2002). "Webb, Archibald Bertram (1887–1944)". Australian Dictionary of Biography, National Centre of Biography, Australian National University. Archived from the original on 16 February 2020. Retrieved 13 February 2020.
Clute, John (26 April 2019). "Bullivant, Cecil H."The Encyclopedia of Science Fiction. Archived from the original on 17 June 2019. Retrieved 6 May 2020.
Clute, John; Ashley, Mike (27 November 2018). "Shaw, Frank H". The Encyclopedia of Science Fiction. Archived from the original on 30 August 2017. Retrieved 6 May 2020.