APA (7 वां संस्करण) प्रशस्ति पत्र
Heerdt, H. (2014). Green banks - the fairy tale of sustainability. Anchor Academic Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Heerdt, Hedwig. Green Banks - the Fairy Tale of Sustainability. Hamburg, Germany: Anchor Academic Publishing, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Heerdt, Hedwig. Green Banks - the Fairy Tale of Sustainability. Anchor Academic Publishing, 2014.
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