APA (7th ed.) Citation

Zapp, R. (1954). U-Boot und U-Bootsabwehr. Wehrkunde.

Chicago Style (17th ed.) Citation

Zapp, Richard. "U-Boot Und U-Bootsabwehr." Wehrkunde 1954.

MLA (8th ed.) Citation

Zapp, Richard. "U-Boot Und U-Bootsabwehr." Wehrkunde, 1954.

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