APA

[Balkema], . (1985). South African geotechnical conference, Silverton 11-13 November 1980. Proceedings. Suppl. to the proceedings of the 7th regional conference for Africa on Soil Mechanics and Foundation Engineering, Accra in June 1980. Rotterdam: [Balkema].

Chicago

[Balkema], . 1985. South African geotechnical conference, Silverton 11-13 November 1980. Proceedings. Suppl. to the proceedings of the 7th regional conference for Africa on Soil Mechanics and Foundation Engineering, Accra in June 1980. Rotterdam: [Balkema].

Harvard

[Balkema], . (1985). South African geotechnical conference, Silverton 11-13 November 1980. Proceedings. Suppl. to the proceedings of the 7th regional conference for Africa on Soil Mechanics and Foundation Engineering, Accra in June 1980. Rotterdam: [Balkema].

MLA

[Balkema], . South African geotechnical conference, Silverton 11-13 November 1980. Proceedings. Suppl. to the proceedings of the 7th regional conference for Africa on Soil Mechanics and Foundation Engineering, Accra in June 1980. Rotterdam: [Balkema]. 1985.