O'Donovan, Caroline. "Slowly but surely, advertisers are learning how to track mobile users." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 20 Mar. 2013. Web. 21 Nov. 2019.
APA
O'Donovan, C. (2013, Mar. 20). Slowly but surely, advertisers are learning how to track mobile users. Nieman Journalism Lab. Retrieved November 21, 2019, from https://www.niemanlab.org/2013/03/slowly-but-surely-advertisers-are-learning-how-to-track-mobile-users/
Chicago
O'Donovan, Caroline. "Slowly but surely, advertisers are learning how to track mobile users." Nieman Journalism Lab. Last modified March 20, 2013. Accessed November 21, 2019. https://www.niemanlab.org/2013/03/slowly-but-surely-advertisers-are-learning-how-to-track-mobile-users/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2013/03/slowly-but-surely-advertisers-are-learning-how-to-track-mobile-users/
| title = Slowly but surely, advertisers are learning how to track mobile users
| last = O'Donovan
| first = Caroline
| work = [[Nieman Journalism Lab]]
| date = 20 March 2013
| accessdate = 21 November 2019
| ref = {{harvid|O'Donovan|2013}}
}}
