Fernandez, A. Charge your phone with very small windmills. IN Tech News. Manila Bulletin.
Chicago-viite (17. p.)Fernandez, Angelo. "Charge Your Phone with Very Small Windmills. IN Tech News." Manila Bulletin .
MLA-viite (9. p.)Fernandez, Angelo. "Charge Your Phone with Very Small Windmills. IN Tech News." Manila Bulletin, .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.