Drags Hydrography

8 books
HydrographyU.S. Coast and Geodetic Survey.
⏱ 31m

Hydrography

U.S. Coast and Geodetic Survey.

190831 pp.
HydrographyNicholas Hunter Heck
⏱ 31m

Hydrography

Nicholas Hunter Heck

191431 pp.
Wire drag manualKenneth S. Ulm
⏱ 1h 43m

Wire drag manual

Kenneth S. Ulm

1959103 pp.
Description of long wire dragN. H. Heck
⏱ 31m

Description of long wire drag

N. H. Heck

191431 pp.
Wire-drag work in AlaskaLeo O. Colbert
⏱ 31m

Wire-drag work in Alaska

Leo O. Colbert

191631 pp.
Construction and operation of the wire dragJ. H. Hawley
⏱ 40m

Construction and operation of the wire drag

J. H. Hawley

191940 pp.
Construction and operation of the wire drag and sweepJ. H. Hawley
⏱ 1h 4m

Construction and operation of the wire drag and sweep

J. H. Hawley

192564 pp.
Wire-drag work on the Atlantic coastN. H. Heck
⏱ 24m

Wire-drag work on the Atlantic coast

N. H. Heck

191524 pp.