TY  - BOOK
TI  - Abu Shacker's "Chronography" ; A Treatise of the 13th Century on Chronological, Calendrical, and Astronomical Matters, written by a Christian Arab, preserved in Ethiopic
SN  - 3-7001-1470-2
PY  - 1988///
CY  - Wien
PB  - Verlag der Еsterreichischen Akademie der Wissenschafte
N1  - 7  plates
ER  -