APA (7th ed.) Citation

Botting, D. (1987). Die Unterseeboote (Sixth German printing.). Time-Life Bücher.

Chicago Style (17th ed.) Citation

Botting, Douglas. Die Unterseeboote. Sixth German printing. Amsterdam: Time-Life Bücher, 1987.

MLA (9th ed.) Citation

Botting, Douglas. Die Unterseeboote. Sixth German printing. Time-Life Bücher, 1987.

Warning: These citations may not always be 100% accurate.