U.S. coast survey, A.D. Bache Superintendent. Preliminary survey of Humboldt Bay, California ... Scale 1:30,000 ...
Bache, A. D.(Alexander Dallas),1806-1867.
[Washington, D.C.],
1852.
Inset: Sketch of Humboldt Bay. Scale 1:150,000.
Sailing directions.
Sketch J, No. 8.