Vollert, J. (2021). B-4 Soviet hammer of God: The Soviet high-power artillery "Tripleks" B-4 203mm Howitzer, Br-2 152mm gun, Br-5 280mm mortar and variants. Tankograd Publishing.
Chicago-Zitierstil (17. Ausg.)Vollert, Jochen. B-4 Soviet Hammer of God: The Soviet High-power Artillery "Tripleks" B-4 203mm Howitzer, Br-2 152mm Gun, Br-5 280mm Mortar and Variants. Erlangen: Tankograd Publishing, 2021.
MLA-Zitierstil (9. Ausg.)Vollert, Jochen. B-4 Soviet Hammer of God: The Soviet High-power Artillery "Tripleks" B-4 203mm Howitzer, Br-2 152mm Gun, Br-5 280mm Mortar and Variants. Tankograd Publishing, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.