Bieniawski, Z. T. (1976). Exploration for rock engineering: Proceedings of the symposium on exploration for rock engineering, Johannesburg, 1-5 November 1976. Cape Town: A. A. Balkema.
Παραπομπή Chicago StyleBieniawski, Z. T. Exploration for Rock Engineering: Proceedings of the Symposium On Exploration for Rock Engineering, Johannesburg, 1-5 November 1976. Cape Town: A. A. Balkema, 1976.
Παραπομπή MLABieniawski, Z. T. Exploration for Rock Engineering: Proceedings of the Symposium On Exploration for Rock Engineering, Johannesburg, 1-5 November 1976. Cape Town: A. A. Balkema, 1976.
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