APA (7th ed.) Citation

Babyk, I., Melnyk, O., & Elyiv, A. (2012). Chandra observations of ten galaxy clusters.

Chicago Style (17th ed.) Citation

Babyk, Iu, O. Melnyk, and A. Elyiv. Chandra Observations of Ten Galaxy Clusters. 2012.

MLA (8th ed.) Citation

Babyk, Iu, et al. Chandra Observations of Ten Galaxy Clusters. 2012.

Warning: These citations may not always be 100% accurate.