The meaningful use of the Secchi disc /

Bibliographic Details
Main Author:	Williams, Jerome, 1926-
Corporate Author:	Chesapeake Bay Institute
Format:	Book
Language:	English
Published:	[Annapolis] : Chesapeake Bay Institute, Johns Hopkins University, 1968.
Series:	Technical report (Chesapeake Bay Institute) ; 45. Reference (Chesapeake Bay Institute) ; 68-15.
Subjects:	Seawater > Optical properties. Oceanographic instruments.

Description
Physical Description:	13 pages : illustrations ; 28 cm.
Bibliography:	Bibliography: page 13.