TY  - BOOK
AU  - Lane,Franklin K.
TI  - Conservation through engineering,
T2  - U.S. Geological survey. Bulletin 705
AV  - QE75 .B9 no. 705
PY  - 1920///
CY  - Washington
PB  - Govt. Print. Off.
N1  - At head of title: Department of the interior; Extract from the Annual report of the secretary of the interior
ER  -