@misc{_Polskie,
 howpublished={online},
 publisher={Polska Akademia Umiejętności (1919-1952)},
 language={Polish},
 title={Polskie instruktarze ekonomiczne z końca XVII i XVIII w. T. 2},
 type={book},
 keywords={agricultural economics, agriculture, Poland, Eastern Borderlands of the Republic of Poland, historical sources, economic history},
}