Langeveld, Martin. "NAA chief on Q4: “Velocity of ad decline is moderating”." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 25 Mar. 2010. Web. 16 Mar. 2025.
APA
Langeveld, M. (2010, Mar. 25). NAA chief on Q4: “Velocity of ad decline is moderating”. Nieman Journalism Lab. Retrieved March 16, 2025, from https://www.niemanlab.org/2010/03/naa-chief-on-q4-velocity-of-ad-decline-is-moderating/
Chicago
Langeveld, Martin. "NAA chief on Q4: “Velocity of ad decline is moderating”." Nieman Journalism Lab. Last modified March 25, 2010. Accessed March 16, 2025. https://www.niemanlab.org/2010/03/naa-chief-on-q4-velocity-of-ad-decline-is-moderating/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2010/03/naa-chief-on-q4-velocity-of-ad-decline-is-moderating/
| title = NAA chief on Q4: “Velocity of ad decline is moderating”
| last = Langeveld
| first = Martin
| work = [[Nieman Journalism Lab]]
| date = 25 March 2010
| accessdate = 16 March 2025
| ref = {{harvid|Langeveld|2010}}
}}
