APA (7th ed.) Citation

Popova, M. A., Kudliak, V. M., & Ladychuk, O. K. (2016). Ontological approach to virtual tours.

Chicago Style (17th ed.) Citation

Popova, M. A., V. M. Kudliak, and O. K. Ladychuk. Ontological Approach to Virtual Tours. 2016.

MLA (8th ed.) Citation

Popova, M. A., et al. Ontological Approach to Virtual Tours. 2016.