G. H. G. Lucas

• Business environment and marketing strategies of manufacturing industries in 1989
• Die inkooppatroon en intervoorstedelike koopkragvloei binne groter Pretoria
• Konferensie, Driessen verslag, Unisa, 16/17 Oktober 1975
• The business environment and marketing strategies of manufacturing industries in 1986
• The Marketing of the international image of South Africa
• The South African business environment in 1991
• The South African business environment in 1994
• Urbanisation of the RSA's population, 1985