Gaya APA
B. Singh, R.K. Goel. (1999).
Rock mass classification : a pratical approach in civil engineering .
New York:
Elsevier Inc.
Gaya Chicago
B. Singh, R.K. Goel.
Rock mass classification : a pratical approach in civil engineering.
New York:
Elsevier Inc,
1999.
Text.
Gaya MLA
B. Singh, R.K. Goel.
Rock mass classification : a pratical approach in civil engineering.
New York:
Elsevier Inc,
1999.
Text.
Gaya Turabian
B. Singh, R.K. Goel.
Rock mass classification : a pratical approach in civil engineering.
New York:
Elsevier Inc,
1999.
Print.