@misc{Bubnik_Z._Sugar,
 author={Bubnik, Z. and Kadles, P. and Urban, D. and Bruhns, M.},
 howpublished={online},
 publisher={Verlag Dr. Albert Bartens},
 language={eng},
 type={książka},
 type={dokument piśmienniczy},
 title={Sugar technologists manual : chemical and physical data for sugar manufacturers and users},
}