new water tube level for measuring the settlement of buildi-ngs / by F. L. Peckover.
Peckover, F. L.
new water tube level for measuring the settlement of buildi-ngs / by F. L. Peckover. - Ottawa, [Canada] : esearch - [23] p. - Technical paper; No. 11 .
new water tube level for measuring the settlement of buildi-ngs / by F. L. Peckover. - Ottawa, [Canada] : esearch - [23] p. - Technical paper; No. 11 .