APA (7th ed.) Citation

Peter, H. (2002). "Der eiserner Gustav": Berliner Original, Symbol Figur, Image Förderer.

Chicago Style (17th ed.) Citation

Peter, Heinz. "Der Eiserner Gustav": Berliner Original, Symbol Figur, Image Förderer. 2002.

MLA (9th ed.) Citation

Peter, Heinz. "Der Eiserner Gustav": Berliner Original, Symbol Figur, Image Förderer. 2002.

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