Cita APA

Xinhua News Agency. (2017). US researchers invent first battery-free cellphone. Manila Bulletin.

Citación estilo Chicago

Xinhua News Agency. "US Researchers Invent First Battery-free Cellphone." Manila Bulletin 2017.

Cita MLA

Xinhua News Agency. "US Researchers Invent First Battery-free Cellphone." Manila Bulletin, 2017.

Warning: These citations may not always be 100% accurate.