Hayakawa, S., & Fletcher, P. (1986). Cassell's modern guide to synonyms and related words. Cassell.
Citazione stile Chigago Style (17a edizione)Hayakawa, S.I, e Paul Fletcher. Cassell's Modern Guide to Synonyms and Related Words. London: Cassell, 1986.
Citatione MLA (9a ed.)Hayakawa, S.I, e Paul Fletcher. Cassell's Modern Guide to Synonyms and Related Words. Cassell, 1986.
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