@misc{Wolna-Maruwka_A._Biological_2009,
 author={Wolna-Maruwka, A. and Niewiadomska, A. and Klama, J.},
 copyright={na miejscu},
 howpublished={online},
 year={2009},
 publisher={HARD Publishing Company},
 abstract={od strony: 931},
 title={Biological Activity of Grey-Brown Podzolic Soil Organically Fertilized for Maize Cultivation in Monoculture},
 type={artykuł z czasopisma},
}