APA (7th ed.) Citation

ScienceDirect (Online service), Stefanakis, A., & Nikolaou, I. (2021). Circular economy and sustainability. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Alexandros Stefanakis, and Ioannis Nikolaou. Circular Economy and Sustainability. Amsterdam: Elsevier, 2021.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Circular Economy and Sustainability. Elsevier, 2021.