South Africa Politics and government 1978-1989 (Geographic Name)
Work cat.: Villa-Vicencio, C. Civil disobedience and beyond, 1990: p. vii ("Since the launch of the 1989 defiance campaign the character of the liberation struggle has changed dramatically.") p. xii ("The newly elected De Klerk government was forced to act.")
Collier's year book 1990 : covering the year 1989: p. 452 (South Africa, "F.W. de Klerk became South Africa's new state president.")