APA (7th ed.) Citation

Zipf, A. (1998). Geographie im Internet. HGG-Journal, 11, .

Chicago Style (17th ed.) Citation

Zipf, Alexander. "Geographie Im Internet." HGG-Journal 11 (1998).

MLA (9th ed.) Citation

Zipf, Alexander. "Geographie Im Internet." HGG-Journal, vol. 11, 1998.

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