APA-referens (7:e uppl.)

Markoff, J. Tasks easy for people but hard for robots. IN The New York Times. Manila Bulletin.

Chicago-referens (17:e uppl.)

Markoff, John. "Tasks Easy for People but Hard for Robots. IN The New York Times." Manila Bulletin .

MLA-referens (9:e uppl.)

Markoff, John. "Tasks Easy for People but Hard for Robots. IN The New York Times." Manila Bulletin, .