APA (7th ed.) Citation

Hartwig, A. (1986). Der Modellierer GEKO.

Chicago Style (17th ed.) Citation

Hartwig, Andreas. Der Modellierer GEKO. 1986.

MLA (9th ed.) Citation

Hartwig, Andreas. Der Modellierer GEKO. 1986.

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