BİLİR, S. And sırma, m. 1995. The Sunspot Observations Made In 1992. The Journal of Astronomy and Astrophysics , vol.60 .

BİLİR, S., & sırma, m., (1995). The Sunspot Observations Made In 1992. The Journal of Astronomy and Astrophysics , vol.60.

BİLİR, Selçuk, And melahat sırma. "The Sunspot Observations Made In 1992," The Journal of Astronomy and Astrophysics , vol.60, 1995

BİLİR, Selçuk And sırma, melahat. "The Sunspot Observations Made In 1992." The Journal of Astronomy and Astrophysics , vol.60, 1995

BİLİR, S. And sırma, m. (1995) . "The Sunspot Observations Made In 1992." The Journal of Astronomy and Astrophysics , vol.60.

@article{article, author={Selçuk BİLİR And author={melahat sırma}, title={The Sunspot Observations Made In 1992}, journal={The Journal of Astronomy and Astrophysics}, year=1995}