Citazione Stile APA (7a Edizione)

Cleveland Cutler J., O<U+0092>Connor Peter A., & Sustainability Institute. Energy return on investment (EROI) of oil shale.

Citazione stile Chigago Style (17a edizione)

Cleveland Cutler J., O<U+0092>Connor Peter A., e Sustainability Institute. Energy Return on Investment (EROI) of Oil Shale.

Citatione MLA (9a ed.)

Cleveland Cutler J., et al. Energy Return on Investment (EROI) of Oil Shale.