APA-referens (7:e uppl.)

Zygierewicz, A., Egenhofer, C., Núñez Ferrer, J., Fawcett, T., Rosenow, J., & al, E. (2016). Implementation of the energy efficiency directive (2012/27/EU): Energy efficiency obligation schemes. European Parliamentary Research Service.

Chicago-referens (17:e uppl.)

Zygierewicz, A., C. Egenhofer, J. Núñez Ferrer, T. Fawcett, J. Rosenow, och Et al. Implementation of the Energy Efficiency Directive (2012/27/EU): Energy Efficiency Obligation Schemes. European Parliamentary Research Service, 2016.

MLA-referens (9:e uppl.)

Zygierewicz, A., et al. Implementation of the Energy Efficiency Directive (2012/27/EU): Energy Efficiency Obligation Schemes. European Parliamentary Research Service, 2016.