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

APA Citation Edition Citation

Valev, P. (2006). The omphalos from the Valley of the Thracian Kings. Archeologiceski Institut na BAN.

Chicago Citation Edition Citation

Valev, Petar. The Omphalos from the Valley of the Thracian Kings. Sofija: Archeologiceski Institut na BAN, 2006.

MLA Citation Edition Citation

Valev, Petar. The Omphalos from the Valley of the Thracian Kings. Archeologiceski Institut na BAN, 2006.