Engin, S. And YÜCE, K. 1997. Photoelectric Observations of X Persei. Information Bulletin on Variable Stars , no.4454 , 1-3.

Engin, S., & YÜCE, K., (1997). Photoelectric Observations of X Persei. Information Bulletin on Variable Stars , no.4454, 1-3.

Engin, Semanur, And KUTLUAY YÜCE. "Photoelectric Observations of X Persei," Information Bulletin on Variable Stars , no.4454, 1-3, 1997

Engin, Semanur And YÜCE, KUTLUAY. "Photoelectric Observations of X Persei." Information Bulletin on Variable Stars , no.4454, pp.1-3, 1997

Engin, S. And YÜCE, K. (1997) . "Photoelectric Observations of X Persei." Information Bulletin on Variable Stars , no.4454, pp.1-3.

@article{article, author={Semanur Engin And author={KUTLUAY YÜCE}, title={Photoelectric Observations of X Persei}, journal={Information Bulletin on Variable Stars}, year=1997, pages={1-3} }