TY  - BOOK
AU  - Rio, Walden S. 
TI  - Soil mechanics lab. manual/ 
SN  - 971-08-5792-4
U1  - Res. 624.15136 R477s 2nd ed.
PY  - 1995///
CY  - Philippines : 
PB  - National book store, 
ER  -