APA aipamena

Sanger, D. E., & Perlroth, N. Internet giants erect barriers to thwart spy agencies. Manila Bulletin.

Chicago Style aipamena

Sanger, David E., and Nicole Perlroth. "Internet Giants Erect Barriers to Thwart Spy Agencies." Manila Bulletin .

MLA aipamena

Sanger, David E., and Nicole Perlroth. "Internet Giants Erect Barriers to Thwart Spy Agencies." Manila Bulletin, .