editor, J.H. van der Merwe ; editorial committee, Institute for Cartographic Analysis, University of Stellenbosch [and] Directorate Development Co-ordination, SWA
[consejo de redacción--director general, Gladstone Oliva Gutiérrez; redactores temáticos principales, José R. Hernández Santana ... and others ; redactores cartográficos principales, Antonio C. Lorenzo Rodríguez ... and others]