Langeveld, Martin. "Has newspaper advertising reached rock bottom? Probably not.." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 22 Sep. 2009. Web. 30 Nov. 2021.
APA
Langeveld, M. (2009, Sep. 22). Has newspaper advertising reached rock bottom? Probably not.. Nieman Journalism Lab. Retrieved November 30, 2021, from https://www.niemanlab.org/2009/09/has-newspaper-advertising-reached-rock-bottom-probably-not/
Chicago
Langeveld, Martin. "Has newspaper advertising reached rock bottom? Probably not.." Nieman Journalism Lab. Last modified September 22, 2009. Accessed November 30, 2021. https://www.niemanlab.org/2009/09/has-newspaper-advertising-reached-rock-bottom-probably-not/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2009/09/has-newspaper-advertising-reached-rock-bottom-probably-not/
| title = Has newspaper advertising reached rock bottom? Probably not.
| last = Langeveld
| first = Martin
| work = [[Nieman Journalism Lab]]
| date = 22 September 2009
| accessdate = 30 November 2021
| ref = {{harvid|Langeveld|2009}}
}}
