Tulip filter Cholera prevention Zimbabwe
4 years ago
Tulip filter demonstration Mozambique
Here are all of the videos that Klaas van der Ven has uploaded to Vimeo. Appearances are videos that Klaas van der Ven has been credited in by others.
More stuff from Klaas van der Ven
TM + © 2015 Vimeo, LLC. All rights reserved.
Made with k in NYC.
Your content preferences apply to any Vimeo videos you view. Learn more about content preferences in our FAQ.