Proceedings of the Nelson Mandela 6th annual lecture by Madam Ellen Johnson- Sirleaf president of Liberia, Kliptown Add to clipboard ZA COM NMFSV-6 Subseries 2008-07-11 Part of Nelson Mandela Annual Lecture [sound/video] The 5th Nelson Mandela Annual Lecture by Madame Ellen Johnson-Sirleaf held in Kliptown, Soweto. Nelson Mandela Foundation (NMF)