TY  - BOOK
ED  - International symposium on the observatories in Islam (Ä°stanbul : 1977)
TI  - International symposium on the observatories in Islam 19 - 23 Sebtember, 1977
AV  - QE540.T9 S46 1980
PY  - 1980///
CY  - Ä°stanbul
PB  - Milli Eğitim Basimevi
KW  - Observatories
KW  - Seismological stations
ER  -