found: His Die uitgawebegroting en die Parlement, 1973.
found: His Taak van die leidinggewende beampte, 1979:title page (C. Thornhill)
found: Hanekom, S.X. Public administration in contemporary society, 1993:title page (C. Thornhill) page 4 of cover (Dr. Chris Thornhill; deputy director-general, Department of Local Government and Nationall Housing)
found: SA(Thornhill, Christopher)
found: SANB correspondence with author, July 30, 1973(full name: Thornhill, Christopher; date of birth: April 24, 1936)
found: whoswho Web site, June 10, 2014Christopher Thornhill (Born 24-04-1936; Professor Emeritus at the University of Pretoria; Acting Chief Executive, Department of Local Government and National Housing, Government of South Africa) - http://whoswho.co.za/christopher-thornhill-3429