@misc{Willich_Jodocus_(1501-1552)_Iodoci,
 author={Willich, Jodocus (1501-1552)},
 howpublished={online},
 publisher={(Ex Officina Crationis Mylii)},
 language={lat},
 language={grc},
 type={stary druk},
 title={Iodoci Willichii Reselliani Arithmeticæ libri tres},
 keywords={16 w., wydawnictwa przed 1800, stare druki, arytmetyka},
}