^Who’s Who in New Zealand, 9th edition, edited by G C Petersen, p235 (1968, Reed, Wellington)
^Who’s Who in New Zealand, 10th edition, edited by G C Petersen, p238 (1971, Reed, Wellington)
^"R. A. K. Mason - 1962". Nourishing the Roots: An exhibition celebrating the 50th anniversary of the Robert Burns Fellowship at the University of Otago. University of Otago. Retrieved 16 June 2015.