Tidal and current surveys:
methods, instruments and purposes.
APA Citation
U.S. Coast and Geodetic Survey. (1924). Tidal and current surveys: methods, instruments and purposes. Washington: Govt. print. off..
MLA Citation
U.S. Coast and Geodetic Survey. Tidal And Current Surveys: Methods, Instruments And Purposes. Washington: Govt. print. off., 1924.
Warning: These citations may not always be complete (especially for serials).