Day, Don. "Timewalls and other reader revenue experiments." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 31 Dec. 2018. Web. 19 Apr. 2019.
APA
Day, D. (2018, Dec. 31). Timewalls and other reader revenue experiments. Nieman Journalism Lab. Retrieved April 19, 2019, from https://www.niemanlab.org/2018/12/timewalls-and-other-reader-revenue-experiments/
Chicago
Day, Don. "Timewalls and other reader revenue experiments." Nieman Journalism Lab. Last modified December 31, 2018. Accessed April 19, 2019. https://www.niemanlab.org/2018/12/timewalls-and-other-reader-revenue-experiments/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2018/12/timewalls-and-other-reader-revenue-experiments/
| title = Timewalls and other reader revenue experiments
| last = Day
| first = Don
| work = [[Nieman Journalism Lab]]
| date = 31 December 2018
| accessdate = 19 April 2019
| ref = {{harvid|Day|2018}}
}}
