|Product Family||Telephone Number|
|K-6 HMH School||1-800-323-9239|
|Specialized Curriculum Group/Supplemental - Great Source - Rigby - SteckVaughn - Saxon||1-800-200-7109|
|Learning Technology - Riverdeep||1-888-327-2906|
|Monday through Friday - 7:00 AM - 10:00 PM CST - Holidays Excluded|
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