Gannon, M. (1990). Operation drumbeat: The dramatic true story of Germany's first U-boat attacs along the American coast in world war II. New York: Harper & Row Publishers.
Chicago Style CitationGannon, Michael. Operation Drumbeat: The Dramatic True Story of Germany's First U-boat Attacs Along the American Coast in World War II. New York: Harper & Row Publishers, 1990.
MLA CitationGannon, Michael. Operation Drumbeat: The Dramatic True Story of Germany's First U-boat Attacs Along the American Coast in World War II. New York: Harper & Row Publishers, 1990.
Warning: These citations may not always be 100% accurate.