توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Herz, S. (2014). Green power already out of breath? why do German consumers not switch to green electricity? Anchor Academic Publishing.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Herz, Sarah. Green Power Already Out of Breath? Why Do German Consumers Not Switch to Green Electricity? Hamburg, Germany: Anchor Academic Publishing, 2014.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Herz, Sarah. Green Power Already Out of Breath? Why Do German Consumers Not Switch to Green Electricity? Anchor Academic Publishing, 2014.