Παραπομπή σε μορφή APA (7η εκδ.)

Margolis Nancy, Brindle Ross, & U.S. Department of Energy. Energy and environmental profile of the U.S. iron and steel industry.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Margolis Nancy, Brindle Ross, και U.S. Department of Energy. Energy and Environmental Profile of the U.S. Iron and Steel Industry.

Παραπομπή σε μορφή MLA (9th εκδ.)

Margolis Nancy, et al. Energy and Environmental Profile of the U.S. Iron and Steel Industry.