@misc{Durand_Guillaume_(1230–1296)_Speculum,
 author={Durand, Guillaume (1230–1296)},
 howpublished={online},
 publisher={Balthasar Azzoguidus},
 language={lat},
 type={inkunabuł},
 title={Speculum iudiciale, cum additionibus Ioannis Andreae et Baldi de Ubaldis. P. 2},
}