APA (7th ed.) Citation

Houghton Mifflin Company. (1667). Signposts. Houghton Mifflin Company.

Chicago Style (17th ed.) Citation

Houghton Mifflin Company. Signposts. Boston: Houghton Mifflin Company, 1667.

MLA (9th ed.) Citation

Houghton Mifflin Company. Signposts. Houghton Mifflin Company, 1667.

Warning: These citations may not always be 100% accurate.