The lovely Hanna has got some wonderful collections of vintage book pages, and collage materials up for sale in her Etsy shop at the moment. Last year I bought some supplies from Hanna and they ended up being incorporated into my giant drawing:
Yes somewhere in there are Swedish book pages!
Not only does Hanna make lovely packages of paper for your creative pleasure, she has a book:
you can buy from lulu.com here. (Oh and she has excellent taste in art, as can be seen by the fact she has one of my drawings on her Etsy wishlist!)