Citations refer to the original publication, not to a Scieee localized version.
Clemente VIII, P. (n.d.). Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, & Fratres Ordinis Haeremitarum Sancti Augustini. Romae : ex typographia Camerae Apostolicae, 1604. https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5
Clemente VIII, Papa, 1536-1605. Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, & Fratres Ordinis Haeremitarum Sancti Augustini. Romae : ex typographia Camerae Apostolicae, 1604. https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5.
Clemente VIII, Papa, 1536-1605. Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, & Fratres Ordinis Haeremitarum Sancti Augustini. Romae : ex typographia Camerae Apostolicae, 1604., n.d. https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5.
Clemente VIII, P. (no date) Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, & Fratres Ordinis Haeremitarum Sancti Augustini. Romae : ex typographia Camerae Apostolicae, 1604. Available at: https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5.
P. Clemente VIII, “Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, & Fratres Ordinis Haeremitarum Sancti Augustini,” Romae : ex typographia Camerae Apostolicae, 1604.. [Online]. Available: https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5
@misc{clementeviiilitterae,
author = {Clemente VIII, Papa, 1536-1605},
title = {Litterae Sanctiss. D.N.D. Clementis Diuina Prouidentia Papae Octaui motu propio emanatae circa controuersias super delatione habitus albi inter Fratres Ordinis Praedicatorum, \& Fratres Ordinis Haeremitarum Sancti Augustini},
publisher = {Romae : ex typographia Camerae Apostolicae, 1604.},
url = {https://idus.us.es/items/a59fa2a1-a1b0-4189-abdb-ec6e9a1909f5}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.