Dyfyniad APA

Herbes, C., & Friege, C. (2020). Marketing Renewable Energy. 1st ed. 2017. Springer International Publishing.

Dyfyniad Arddull Chicago

Herbes, Carsten, và Christian Friege. Marketing Renewable Energy. 1st Ed. 2017. Springer International Publishing, 2020.

Dyfyniad MLA

Herbes, Carsten, và Christian Friege. Marketing Renewable Energy. 1st Ed. 2017. Springer International Publishing, 2020.

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