YouTube. The Twelve Essential Steps to Net Zero Energy with Ted Clifton (Clifton View Homes).
Citazione stile Chigago Style (17a edizione)YouTube. The Twelve Essential Steps to Net Zero Energy with Ted Clifton (Clifton View Homes).
Citatione MLA (9a ed.)YouTube. The Twelve Essential Steps to Net Zero Energy with Ted Clifton (Clifton View Homes).
Attenzione: Queste citazioni potrebbero non essere precise al 100%.