Diana F+ 35mm lens adapter for Nikon D90?

I have a Nikon D90. I was looking at the Diana F+ 35mm lens, because I know they have adapters. I love old film effects, but I was wondering what I would need to adapt that lens to my camera? Please help.

Added (1). *adaptor.
my computer auto fixes words that it thinks is misspelled…

Added (2). Basically, what adapter do I get?

I've never done it before but i'm assuming, you need to take off your digital lens, put in the adaptor first, and then attach the diana lens on top of it, just like you'd do with other lenses.

the only reason you need an adaptor is because the lens screw or whatever you'd call it doesn't match up with digital.