TY  - BOOK
AU  - Twelvetrees,W.H.
TI  - On cement materials at West Arm,
T2  - Tasmania. Geological survey. Geological survey report
AV  - TN122.T3 A37 no. 4
PY  - 1914///
CY  - Hobart, Tasmania
PB  - J. Vail, government printer
KW  - Cement
KW  - Australia
KW  - Tasmania
N1  - At head of title: Tasmania. Dept. of Mines
ER  -