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file | filename |
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EX-99.2 - EX-99.2 - Houghton Mifflin Harcourt Co | hmhc-ex992_63.htm |
EX-99.1 - EX-99.1 - Houghton Mifflin Harcourt Co | hmhc-ex991_6.htm |
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file | filename |
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EX-99.2 - EX-99.2 - Houghton Mifflin Harcourt Co | hmhc-ex992_63.htm |
EX-99.1 - EX-99.1 - Houghton Mifflin Harcourt Co | hmhc-ex991_6.htm |
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