APA (7th ed.) Citation

Vanýsek, V., Tichý, M., Tichá, J., & Moravec, Z. Photometric studies of comets at the Kleť Observatory.

Chicago Style (17th ed.) Citation

Vanýsek, V., M. Tichý, J. Tichá, and Z. Moravec. Photometric Studies of Comets at the Kleť Observatory.

MLA (9th ed.) Citation

Vanýsek, V., et al. Photometric Studies of Comets at the Kleť Observatory.