Ventura County investigation
By: State Water Resources Board.
Series: Bulletin / State Water Resources Board -- no. 12; Bulletin (California. State Water Resources Board) -- no. 12.
Publisher: The Board
Published: 1956
Place of publication: [Sacramento]
Language: eng
Subjects: Water-supply -- California -- Ventura County; Water resources development -- California -- Ventura County; Water use -- California -- Ventura County
Notes: 35 folded maps (some col.), 10 folded plans, 16 folded charts inserted.

"October, 1953. Revised April, 1956."
Table of contents: title: Vol. I. Text; title: Vol. II. Appendixes and plates.