Citation Button

I have been using Khan Academy since Middle school. I am just about to finish my first degree. Lots of my courses throughout the school have used Khan Academy as a resource (which of course I am a big fan of). It would be great if there was a citation button within the site, or maybe a small section down at the bottom. (My apologies if there is something and I just haven't noticed it.) Some things are a little tricky for me to properly cite, a lot of the articles I just write the current year since the year it was posted does not seem to be available. 

ALSO: I would love to see some nutrition/dietetics-related courses eventually :) 

And as always thank you so much to everyone at Khan Academy. I'm so grateful for this amazing resource, it has been a great help over the last several years.