TY  - BOOK
AU  - Aman, Nelia Verzosa
TI  - Construction safety practices of contractors in Metro Vigan: effect to productivity 
U1  - TH 690 Am1c 2015 
PY  - 2015///
CY  - Laoag City
PB  - [s.n.]
KW  - Construction safety
N1  - Bibliography: pages 66-67
ER  -