TY  - BOOK
AU  - Freitag, Mark 
AU  - Woods, Anthony 
TI  - Commercial diving reference and operations handbook/ 
SN  - 0-471-90003-6 
U1  - R|H  797.23  
PY  - 1983///.
CY  - New York: 
PB  - john Wiley and Sons, 
KW  - Reference  and operations
ER  -