APA (7th ed.) Citation

(1989). Richard Ziegler: Geb. 1891 in Pforzheim.

Chicago Style (17th ed.) Citation

Richard Ziegler: Geb. 1891 in Pforzheim. Grafenau, 1989.

MLA (8th ed.) Citation

Richard Ziegler: Geb. 1891 in Pforzheim. 1989.

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