APA

[Cape Town AA Balkema], . (1976). Exploration for Rock Engineering. Proceeding of the Symposium on Exploration for Rock Engineering, Johannesburg, Nov 1976. Rotterdam: [Cape Town AA Balkema].

Chicago

[Cape Town AA Balkema], . 1976. Exploration for Rock Engineering. Proceeding of the Symposium on Exploration for Rock Engineering, Johannesburg, Nov 1976. Rotterdam: [Cape Town AA Balkema].

Harvard

[Cape Town AA Balkema], . (1976). Exploration for Rock Engineering. Proceeding of the Symposium on Exploration for Rock Engineering, Johannesburg, Nov 1976. Rotterdam: [Cape Town AA Balkema].

MLA

[Cape Town AA Balkema], . Exploration for Rock Engineering. Proceeding of the Symposium on Exploration for Rock Engineering, Johannesburg, Nov 1976. Rotterdam: [Cape Town AA Balkema]. 1976.