Engineering rock mass classifications :
a complete manual for engineers and geologists in mining, civil, and petroleum engineering /
Z.T. Bieniawski.
APA Citation
Bieniawski, Z. T. (1989). Engineering rock mass classifications: a complete manual for engineers and geologists in mining, civil, and petroleum engineering. New York: Wiley.
MLA Citation
Bieniawski, Z. T. Engineering Rock Mass Classifications: a Complete Manual for Engineers And Geologists In Mining, Civil, And Petroleum Engineering. New York: Wiley, 1989.
Warning: These citations may not always be complete (especially for serials).