STOYANOVA, V., KOTSEV, T., ZHELEZOV, G., SIMA, M., & LEVEI, E. Copper concentration in the soils of the Danube floodplain between the rivers Timok and Vit northwestern Bulgaria. European Association of Geographers.
Chicago Style (17th ed.) CitationSTOYANOVA, Velimira, Tsvetan KOTSEV, Georgi ZHELEZOV, Michaela SIMA, and Erika-Andrea LEVEI. Copper Concentration in the Soils of the Danube Floodplain Between the Rivers Timok and Vit Northwestern Bulgaria. European Association of Geographers.
MLA (9th ed.) CitationSTOYANOVA, Velimira, et al. Copper Concentration in the Soils of the Danube Floodplain Between the Rivers Timok and Vit Northwestern Bulgaria. European Association of Geographers.
Warning: These citations may not always be 100% accurate.