There are three ways for educational institutions to purchase this on DVD.
1) Send us a purchase order. Best is to send it to us by e-mail at firstname.lastname@example.org. In the alternative, you can mail us an invoice and at the same time, let us know via e-mail that you have done so. Here is our physical address:Palomino Productions
2) Purchase from us via PayPal:
3) Purchase from a distributor; we recommend Films for the Humanities and Sciences; here is the LINK.
BUT REMEMBER: By purchasing through us instead of a distributor, you contribute much more towards our ability to continue our work. In addition, DVDs purchased through us have Extras; and we also have BluRay available. Please e-mail us if you need BluRay.