Where to buy train tickets from the Netherlands to Paris from inside the Netherlands?

Question

I want to buy train tickets from inside the Netherlands a week or so before going to Paris (I don't want to buy them online)
Where in the Netherlands do they sell these types of train tickets?

Answer 1

Some railway stations have international ticket offices, I know for sure that Amsterdam Centraal and Schiphol, there are nine of them in total.
Take your time to get the tickets sorted at the offices, it can take more than an hour in the middle of the day, off season.

You can phone and get it sorted that way:
TeleSales NS Internationaal, 0900-9296 (0,35 euro p.m.) See its price, not cheap!

http://www.nsinternationaal.nl/tickets--service/nieuwe-selfservicecounter-in-de-ns-tickets-en-servicewinkel.html

This page has all addresses of the offices, with opening times at the bottom of the page.

If going to one of the offices is a problem, most travel agents will also get your tickets for you, at a fee.