APA
Fergusson R., . (1986). The Penguin dictionary of english synonyms and antonyms. London: Penguim Books.
Chicago
Fergusson Rosalind, . 1986. The Penguin dictionary of english synonyms and antonyms. London: Penguim Books.
Harvard
Fergusson R., . (1986). The Penguin dictionary of english synonyms and antonyms. London: Penguim Books.
MLA
Fergusson Rosalind, . The Penguin dictionary of english synonyms and antonyms. London: Penguim Books. 1986.