TY  - BOOK
AU  - Gatland,Kenneth W.
AU  - Hazer,Sezai
TI  - Gökyüzü
T2  - Bilim dizisi
PY  - 1981///
CY  - Istanbul
PB  - Remzi Kitabevi
KW  - Astronomy
KW  - Earth
KW  - Solar system
N1  - This book is in Turkish
ER  -