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Lua i Stíl Chicago (17ú heag.)Leeuw, Karel de. Calculus. New York: Harcourt, brace, 1966.
Lua MLA (9ú heag.)Leeuw, Karel de. Calculus. Harcourt, brace, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.