His Origin of the Earth and Moon, 1979 t.p. (A.E. Ringwood)
His Sostav i proiskhozhdenie zemli, 1981 t.p. (A.E. Ringvud)
OCLC database, 3-6-89 (hdg.: Ringwood, Alfred Edward; usage: A.E. Ringwood)
Obituaries Australia, viewed 13 April 2017 (Ringwood, Alfred Edward (Ted) (1930-1993). Life summary: Birth: 19 April 1930, Kew, Melbourne, Victoria, Australia. Death: 12 November 1993 ... Occupation: academic, geochemist, geophysicist. Biography:Professor Alfred Edward (Ted) Ringwood, Professor of Geochemistry at the Research School of Earth Sciences, the ANU, died on 12 November 1993 at the age of 63...) http://oa.anu.edu.au/obituary/ringwood-alfred-edward-ted-857
Ryerson index, viewed 13 April 2017 (RINGWOOD, Alfred Edward. Probate notice: 26FEB1994, late of Red Hill, ACT. [Published in] Canberra Times 26FEB1994) http://ryersonindex.net