Cita APA (7a ed.)

Liu, L., Qian, S., Fernández Lajús, E. E., Essam, A., El-Sadek, M., & Xiong, X. (2018). Photometric study of three ultrashort-period contact binaries.

Cita Chicago Style (17a ed.)

Liu, L., S.-B Qian, Eduardo Eusebio Fernández Lajús, A. Essam, M.A El-Sadek, y X. Xiong. Photometric Study of Three Ultrashort-period Contact Binaries. 2018.

Cita MLA (8a ed.)

Liu, L., et al. Photometric Study of Three Ultrashort-period Contact Binaries. 2018.