clase PRENSA EN BIBLIOTECAS 

https://teams.microsoft.com/l/meetup-join/19%3a71b89dfba6f348e59ac0a945b646d355%40thread.tacv2/1604436340452?context=%7b%22Tid%22%3a%22e13f1e52-6e32-4972-82ca-697420ee3c98%22%2c%22Oid%22%3a%22039d4233-53b9-4105-ba13-3128a6609672%22%7d"