APA (7th ed.) Citation

Kobra, M., Marušiak, J., & Šťastný, M. Slovakia's integration in to NATO.

Chicago Style (17th ed.) Citation

Kobra, Matúš, Juraj Marušiak, and Marek Šťastný. Slovakia's Integration in to NATO.

MLA (9th ed.) Citation

Kobra, Matúš, et al. Slovakia's Integration in to NATO.