APA Style

Halkos, G. (2020). Assessment of Energy–Environment–Economy Interrelations . www.mdpi.com/books: MDPI - Multidisciplinary Digital Publishing Institute.

MLA Style

Halkos, George. "Assessment of Energy–Environment–Economy Interrelations". www.mdpi.com/books: MDPI - Multidisciplinary Digital Publishing Institute, 2020. Text.