Catchment influences on the geomorphology and biota of the Sabie and Letaba Rivers in the Kruger National Park : pre-conference field excursion, 6th International Conference on Fluvial Sedimentology, University of Cape Town, South Africa, 15 to 20 September, 1997
excursion leaders: George Heritage, Andrew Birkhead and Alan van Coller ; compiled by George Heritage ... [and others] ; edited by John Rogers and Ed Cotter ; draughting by Ann Westoby ..