APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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