APA (7th ed.) Citation

Clua, E., Roque, L., Lugmayr, A., & Tuomi, P. (2018). Preface.

Chicago Style (17th ed.) Citation

Clua, E., L. Roque, Artur Lugmayr, and P. Tuomi. Preface. 2018.

MLA (9th ed.) Citation

Clua, E., et al. Preface. 2018.