Cite
Hydrographic Sheet No. 2001, 1889
MLA
U.S. Coast and Geodetic Survey. Hydrographic Sheet No. 2001, 1889. 1889. EBSCOhost, widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsbhl&AN=edsbhl.title.128017&authtype=sso&custid=ns315887.
APA
U.S. Coast and Geodetic Survey. (1889). Hydrographic Sheet No. 2001, 1889.
Chicago
U.S. Coast and Geodetic Survey. 1889. Hydrographic Sheet No. 2001, 1889. http://widgets.ebscohost.com/prod/customlink/proxify/proxify.php?count=1&encode=0&proxy=&find_1=&replace_1=&target=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=edsbhl&AN=edsbhl.title.128017&authtype=sso&custid=ns315887.