APA (7th ed.) Citation

Speer, G. (1977). Prof. Günter Bialas 70 Jahre.

Chicago Style (17th ed.) Citation

Speer, Gotthard. Prof. Günter Bialas 70 Jahre. 1977.

MLA (9th ed.) Citation

Speer, Gotthard. Prof. Günter Bialas 70 Jahre. 1977.

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