@misc{Newton_Isaac_sir_(1642-1727)_Philosophiae,
 author={Newton, Isaac sir (1642-1727)},
 howpublished={online},
 publisher={Typis Barrillot & Filii Bibliop. & Typogr.},
 language={lat},
 type={printed books 1501-1800},
 title={Philosophiae naturalis principia mathematica. T. 1-3},
 keywords={mathematics, physics, printed books 1501-1800},
}