@misc{Chao_W._Pb,_2007,
 author={Chao, W. and Xiao-Chen, L. and Li-min, Z. and Zgi-Yong, G.},
 copyright={na miejscu},
 howpublished={online},
 year={2007},
 publisher={HARD Publishing Company},
 abstract={od strony: 199},
 title={Pb, Cu, Zn and Ni Concentrations in Vegetables in Relation to Their Extractable Fractions in Soils in Suburban Areas of Nanjing, China},
 type={artykuł z czasopisma},
}