travel document or visa?

來源: 於 2007-06-08 10:16:55 [舊帖] [給我悄悄話] 本文已被閱讀：次

Dear All,

My son was born in the US and I have CANADA green card while US green card application (I-485) pending. If my son travels to China. Which document, travel document or visa, is required? Thanks.