APA Style
Zweifel, P. et al (2017).
Energy Economics: Theory and Applications (1st ed.).
Berlin-Germany:
Springer-Verlag Berlin Heidelberg.
MLA Style
Zweifel, Peter. et al.
"Energy Economics: Theory and Applications".
1st ed.
Berlin-Germany:
Springer-Verlag Berlin Heidelberg,
2017.
Electronic Resource.