Incoming Resources
- Houghton Mifflin company, Boston and New York, 1925
- Houghton, Mifflin and company, Boston and New York, 1900
- Houghton Mifflin company, Boston and New York, 1927
- Houghton, Mifflin and company, Boston and New York, 1902
- Houghton Mifflin company, Boston and New York, 1921