APA način citiranja (7. izdanje)

Popp, D. (2001). Induced innovation and energy prices. National Bureau of Economic Research.

Čikaški stil citiranja (17. izdanje)

Popp, David. Induced Innovation and Energy Prices. Cambridge: National Bureau of Economic Research, 2001.

MLA način citiranja (9. izdanje)

Popp, David. Induced Innovation and Energy Prices. National Bureau of Economic Research, 2001.