Incoming Resources
- Houghton Mifflin company, Boston and New York, 1929
- Houghton Mifflin company, Boston and New York, 1931
- Houghton, Mifflin and company, Boston and New York, 1894
- Houghton Mifflin Company, Boston and New York, 1911
- Houghton, Mifflin and Company, Boston and New York, 1893
- Houghton, Mifflin and company, Boston and New York, 1921