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Seek & Strike
Sonar, Anti-Submarine Warfare, and the Royal Navy, 1914-54
By Hackman, Willem
Descripton: History of the Royal Navy's research in underwater acoustics. Provides useful details regarding the development of underwater detection and its use in the U-boat war. Some 90 pages are relevant to WWII (out of 357 pages, plus 130 pages of appendices and bibliography). A work for the serious enthusiast or student.