TY  - BOOK
AU  - Longridge,Cecil Clement
TI  - Gold dredging
AV  - TN422 .L7
PY  - 1907///
CY  - London
PB  - "The Mining Journal,"
KW  - Gold dredging
N1  - Stamped below imprint: D. Van Nostrand company, New York; Cover-title: Gold dredging and mechanical excavators
ER  -