Cummian's Letter "De Controversia Paschali" together with a related Irish computistical tract "De Ratione Conputandi." Studies in Text Series #86

by Cummian (edited by Maura Walsh and Daibhi O'Croinin)

Hardcover

details (Canada).

ISBN: 978-90-04-08328-8

ISBN-10: 90-04-08328-6

Leiden: E. J. Brill · 1988