Description
Published:1st ed. (Dec. 8/84)-7th ed. (Aug. 24/91).
Item Description:Depths shown by isolines and soundings.
"Soundings in feet."
Includes tide tables for St. Petersburg; and nautical chart diagram.
Electronic resource.
Physical Description:online resource (maps) : color
Publication Frequency:Irregular
Format:The .jpg versions of these maps require Adobe Photoshop or Adobe Acrobat 9 Pro to view.