Ritter der Tiefe--graue Wölfe.
Subtitle: Die erfolgreichsten U-Boot-Kommandanten der Welt des 1. und 2. Weltkrieges.
By: [Von] Bodo Herzog [und] Günter Schomaekers.
Contributors: Schomaekers, Günter, joint author.
Publisher: Verlag Welsermühl
Published: 1965
Place of publication: München; Wels
Language: ger
Number of pages: 563
Subjects: Naval biography.; Submarine warfare.
Notes: Includes biliographies.