Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Tonkov, S., Bozilova, E., & Beug, H. (2011). Palaeoecological studies at the Kaliakra area, northeastern Bulgarian Black Sea coast: 6000 years of natural and anthropological change.

Chicago Citation Edition Citation

Tonkov, Spassimir, Elissaveta Bozilova, und Hans-Jürgen Beug. Palaeoecological Studies at the Kaliakra Area, Northeastern Bulgarian Black Sea Coast: 6000 Years of Natural and Anthropological Change. 2011.

MLA Citation Edition Citation

Tonkov, Spassimir, et al. Palaeoecological Studies at the Kaliakra Area, Northeastern Bulgarian Black Sea Coast: 6000 Years of Natural and Anthropological Change. 2011.