APA (7th ed.) Citation

Hayakawa, S. I. (1987). The Penguin modern guide to synonyms and related words (Rev. ed.). Penguin.

Chicago Style (17th ed.) Citation

Hayakawa, S. I. The Penguin Modern Guide to Synonyms and Related Words. Rev. ed. London: Penguin, 1987.

MLA (8th ed.) Citation

Hayakawa, S. I. The Penguin Modern Guide to Synonyms and Related Words. Rev. ed. Penguin, 1987.