Прокопов, И. С., Gushterakliev, R., & Dzanev, G. (2007). Numismatic collection of the historical museum Lovech (anc. Melta). Numismatic collection of the historical museum Razgrad (anc. Abritus). Sofia: Provias Ltd..
Чикагска система за цитиранеПрокопов, Иля Симеонов, Radoslav Gushterakliev, и Georgi Dzanev. Numismatic Collection of the Historical Museum Lovech (anc. Melta). Numismatic Collection of the Historical Museum Razgrad (anc. Abritus). Sofia: Provias Ltd., 2007.
MLA формат за цитиранеПрокопов, Иля Симеонов, Radoslav Gushterakliev, и Georgi Dzanev. Numismatic Collection of the Historical Museum Lovech (anc. Melta). Numismatic Collection of the Historical Museum Razgrad (anc. Abritus). Sofia: Provias Ltd., 2007.
Внимание: Тези цитати може да не са 100% точни.