That one looks sold-out; but you can get it on Amazon, new or used.
I looked up the one I inherited from my grandmother, and it appears to be still available. The title is: THE HUNGARIAN COOKBOOK, CULINARY ARTS INSTITUTE, by Melanie De Proft.
Absolutely NONE of my other Hungarian cookbooks, of which I have many, because I've been looking for a certain recipe, taken to the grave by my great grandmother, are as good as the other two.
And yes, I'm still on the hunt for a good recipe for a poppy seed ring cake in a yeast dough.