Lewis-Williams, J.D.

Hollmann, J.C.; Lewis-Williams, J.D. 2006. Species and supernatural potency: an unusual rock painting from the Motheo District, Free State province, South Africa. South African Journal of Science 102: 509-512.

Lewis-Williams, J.D. 2006. The evolution of theory, method and technique in Southern African rock art research. Journal of Archaeological Method and Theory 13 (4): 343-377, 4 figs. doi.org/10.1007/s10816-006-9022-0