Lenk, John D. Electronic corrosion control for boats, by John D. Lenk. - [1st ed.] - Indianapolis, H.W. Sams c.1966 - 128 p. illus. 22 cm. - A Howard W. Sams photofact publication, CCL-1 . LCCN: 66018273 Nat. Bib. No.: GB66-13070 Subjects--Topical Terms: Ships--Corrosion.Cathodic protection. LC Class. No.: VM951 / .L4 Dewey Class. No.: 623.82 LEN