APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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

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