Reference books are located in the Asia Reading Room and can't be checked out.
Books in the Kroch Asia book stacks can be checked out. There are two stack levels: Level 1, on the main floor (oversize books, with a "+" in the call number); and 1B, downstairs (regular size books).
In Kroch Library book stacks, see call number section DS 778.7 for Cultural Revolution materials. Level 1 has oversize books (+ in the call number); downstairs level 1B has regular size books
See call number section DS 778 M29 and DS 778 M3 for books on Mao Zedong in the Asia book stacks, on both levels.