Amazon.ca (ie Canada) has six online for Cdn$26.40.
Haynes Manual - Triumph Triples & Fours
I just received mine and it's hardcover. I bought the Triumph shop manual too, and find they complement each other well. At least with both, you get mostly the whole picture. Wife, of course, doesn't understand why I neeeeed all this "stuff". But I'm among friends here, right?