Trenching practice.
Irvine, D.J.
Trenching practice. - 2nd ed. - London CIRIA 1992 - 62p. : ill. ; 30cm. - CIRIA Report 97 .
0860171922
HEALTH AND SAFETY
SAFETY
TRENCHES
TRENCHING PRACTICE
624.152
Trenching practice. - 2nd ed. - London CIRIA 1992 - 62p. : ill. ; 30cm. - CIRIA Report 97 .
0860171922
HEALTH AND SAFETY
SAFETY
TRENCHES
TRENCHING PRACTICE
624.152