Citazione Stile APA (7a Edizione)

Orig, T. S. (1999). Photovoltaic (PV) technology can stop people from migrating to congested cities. Manila Bulletin.

Citazione stile Chigago Style (17a edizione)

Orig, Thor S. "Photovoltaic (PV) Technology Can Stop People from Migrating to Congested Cities." Manila Bulletin 1999.

Citatione MLA (9a ed.)

Orig, Thor S. "Photovoltaic (PV) Technology Can Stop People from Migrating to Congested Cities." Manila Bulletin, 1999.