@Misc{BVMC:259545, author = {Ayala, Balthazar}, title = {Balthasaris Ayalae ... De jure et officiis bellicis, ac disciplina militari libri tres}, url = {https://www.cervantesvirtual.com/obra/balthasaris-ayalae-de-jure-et-officiis-bellicis-ac-disciplina-militari-libri-tres} }