APA Citation

Barton, N. (1974). Engineering Classification of Rock Masses for the Design of Tunnel Support. [y.y.]: [yay. y.].

Chicago Style Citation

Barton, N. Engineering Classification of Rock Masses for the Design of Tunnel Support. [y.y.]: [yay. y.], 1974.

MLA Citation

Barton, N. Engineering Classification of Rock Masses for the Design of Tunnel Support. [y.y.]: [yay. y.], 1974.

Warning: These citations may not always be 100% accurate.