TY  - BOOK
AU  - Cayford, John E.
TI  - UNDERWATER WORK
U1  - 627.7 
PY  - 1959///
CY  - Cambridge, Md.
PB  - Cornell Maritime Press
KW  - Diving, Submarine
KW  - Aqualung
KW  - Underwater Welding And Cutting
ER  -