TY  - BOOK
AU  - Heilbron,J.L.
TI  - The sun in the church: cathedrals as solar observatories
SN  - 0-674-85433-0
PY  - 1999///
CY  - Cambridge, London
PB  - Harvard University Press
N1  - Бібліогр. : c. 305-328, Index
ER  -