@misc{Piotr_Kalka_Nauka_1973,
 author={Piotr Kalka},
 address={Poznań},
 year={1973},
 contents={Strona 102-112},
 publisher={Poznań : IZ,},
 language={pol},
 title={Nauka i technika w programach i praktyce wspólnot europejskich},
 type={text},
}