TY  - BOOK
AU  - ʻArafah,ʻAlī ʻAlī
TI  - An elementary course in geometrical optics,
T2  - University of Assiut. Monograph series,
AV  - QC381 .A68
PY  - 1958///
CY  - Assiut
KW  - Geometrical optics
ER  -