Where do you go to buy books when your country bans them? If you're Chinese, you go to Hong Kong:

Book Dealer: Antiquarian & Rare
(561) 508-3479
Raptis Rare Books is an Antiquarian Book firm specializing in fine first editions, (more)
Book Dealer: Antiquarian & Rare
(773) 472-4528
Modern First Editions, Jazz and Blues, Labor History, African American Studies, (more)