Petrus Alfonsi 1062-1110?.
The scholar’s guide: a translation of the twelfth-century Disciplina Clericalis of Pedro Alfonso /
Joseph Ramon Jones and John Esten Keller 
. - Toronto : Pontifical Institute of Mediaeval Studies,  1969 
. - 117 p.  19 cm. 
<br/><br/> Ex libris: Мирослава Лабуньки..
<br/>К.: Бібліогр. в підрядк. прим.