Grammar, Usage / foreign language quotes and bibliography [2]

1. When quoting in a foreign language (eg. Japanese), should you write it in the original language or translate it into English? If you translate it, in what why do you indicate that

you have translated it?
2. If the title of the book you have used is in a foreign language, should it be translated into
English in the bibliography? I am required to use APA style. Thank you for your help.