Tunnelling in rock /
edited by Z. T. Bieniawski.

APA Citation

Bieniawski, Z. T., South African Council for Scientific and Industrial Research., South African National Group on Rock Mechanics., South African Institution of Civil Engineers. (1974). Tunnelling in rock. 2d ed. Pretoria: South African Institution of Civil Engineers.

MLA Citation

Bieniawski, Z. T, South African Council for Scientific and Industrial Research, South African National Group on Rock Mechanics, and South African Institution of Civil Engineers. Tunnelling In Rock. 2d ed. Pretoria: South African Institution of Civil Engineers, 1974.