Dekker, P. M. Dredging and dredging appliances, by P. M. Dekker; with an introduction by Sir Robert Hadfield. - London, C. Lockwood & son, 1927. - xvi, 170 p., 1 l. illus., 7 fold. pl., diagrs. 28 cm. Subjects--Topical Terms: Dredges.MCE Dewey Class. No.: 627.73 / DEK