Attached files
file | filename |
---|---|
EX-32.2 - EX-32.2 - Houghton Mifflin Harcourt Co | hmhc-ex322_8.htm |
EX-32.1 - EX-32.1 - Houghton Mifflin Harcourt Co | hmhc-ex321_9.htm |
EX-31.2 - EX-31.2 - Houghton Mifflin Harcourt Co | hmhc-ex312_6.htm |
EX-31.1 - EX-31.1 - Houghton Mifflin Harcourt Co | hmhc-ex311_7.htm |
EX-10.1 - EX-10.1 - Houghton Mifflin Harcourt Co | hmhc-ex101_108.htm |
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