APA (7th ed.) Citation

Awadalla, N., Chochol, D., Hanna, M., & Pribulla, T. Orbital period study of AK Her.

Chicago Style (17th ed.) Citation

Awadalla, N., Drahomír Chochol, M. Hanna, and Theodor Pribulla. Orbital Period Study of AK Her.

MLA (9th ed.) Citation

Awadalla, N., et al. Orbital Period Study of AK Her.