The proceedings of a seminar pertaining to the Limpopo Mobile Belt, edited by I. F. Ermanovics, R. M. Key and G. McEwen (1977)

* The reconnaissance airborne magnetic survey of Botswana
* The reconnaissance aeromagnetic survey of Botswana
* The aeromagnetic delineation of the distribution patterns of Karoo volcanics in Botswana and consequent implications for the tectonics of the sub-continent
* Airborne geophysics in the Northern Cape province of south Africa
* Preliminary analysis of the airborne magnetic surveys in Zambia