Curtis, S., & Manser, M. (2001). Wordsworth Crossword Companion. Wordsworth Editions Ltd.
Lua i Stíl Chicago (17ú heag.)Curtis, Stephen, agus Martin Manser. Wordsworth Crossword Companion. London: Wordsworth Editions Ltd, 2001.
Lua MLA (9ú heag.)Curtis, Stephen, agus Martin Manser. Wordsworth Crossword Companion. Wordsworth Editions Ltd, 2001.
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