GÖKGÖZ, F. And ERKUL, E. Analyzing the Sustainable Energy Efficiencies of European Countries. 2021. In Engineering for Sustainable Development and Living , BrownWalker Press/Universal Publishers Inc., 215-244.

GÖKGÖZ, F., & ERKUL, E., (2021). Analyzing the Sustainable Energy Efficiencies of European Countries. Engineering for Sustainable Development and Living (pp.215-244), BrownWalker Press/Universal Publishers Inc..

GÖKGÖZ, FAZIL, And ERCEM ERKUL. "Analyzing the Sustainable Energy Efficiencies of European Countries." In Engineering for Sustainable Development and Living , 215-244. BrownWalker Press/Universal Publishers Inc., 2021

GÖKGÖZ, FAZIL And ERKUL, ERCEM. "Analyzing the Sustainable Energy Efficiencies of European Countries." Engineering for Sustainable Development and Living , BrownWalker Press/Universal Publishers Inc., 2021, pp.215-244.

GÖKGÖZ, F. And ERKUL, E. (2021) "Analyzing the Sustainable Energy Efficiencies of European Countries", Engineering for Sustainable Development and Living . BrownWalker Press/Universal Publishers Inc..

@bookchapter{bookchapter, author ={FAZIL GÖKGÖZ And author ={ERCEM ERKUL}, chaptertitle={Analyzing the Sustainable Energy Efficiencies of European Countries}, booktitle={ Engineering for Sustainable Development and Living}, publisher={BrownWalker Press/Universal Publishers Inc.}, city={},year={2021} }