Παραπομπή σε μορφή APA (7η εκδ.)

Heckel, P. E. (2015). The Ethics of Energy Sustainability: An energy ethics workbook. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heckel, Pamela E. The Ethics of Energy Sustainability: An Energy Ethics Workbook. Dordrecht: Springer Netherlands : Imprint: Springer, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

Heckel, Pamela E. The Ethics of Energy Sustainability: An Energy Ethics Workbook. Springer Netherlands : Imprint: Springer, 2015.