When will you receive a response?
Upon receipt of your question, you will receive e-mail verifying that your question has been received. You may expect an answer within 24 hours (Monday to Friday, holidays excepted.) If you need an answer by a certain date, please be sure to specify this in your request. For more information, please contact Reference Service.

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1. What is ask a question by email?
2. What kinds of questions do we answer?
3. When will you receive a response?
4. Who answers your questions?