APA (7th ed.) Citation

Speer, G. (1983). Gerhard Schwarz 80 Jahre.

Chicago Style (17th ed.) Citation

Speer, Gotthard. Gerhard Schwarz 80 Jahre. 1983.

MLA (9th ed.) Citation

Speer, Gotthard. Gerhard Schwarz 80 Jahre. 1983.

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