Good mono- and bilingual dictionaries and grammar books

[sparkofcreation]

I'm getting ready to teach a course on court interpreting that will be language-neutral, and I'm short on recommendations for the following:

• monolingual general dictionaries
• monolingual legal dictionaries
• bilingual general dictionaries
• bilingual legal dictionaries
• grammar books (the more prescriptivist the better)

for the following languages:

• English
• Spanish
• French
• Portuguese
• American Sign Language
• Arabic (Modern Standard and Egyptian)
• Russian
• Mandarin
• Cantonese
• Thai
• Vietnamese

Any suggestions? I particularly need recommendations for prescriptivist grammar books. For Spanish I'm recommending A New Reference Guide to Modern Spanish and the Diccionario panhispánico de dudas, but I really don't even know what's out there in English except the Chicago Manual of Style and MLA handbook, which are more geared towards writing and less towards (formal) speech.

Thank you!!