Lua APA (7ú heag.)

LIPSCHUTZ SEYMOUR. (1992). DISCRETE MATHEMATICS: 2000 SOLVED PROBLEMS. MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

LIPSCHUTZ SEYMOUR. DISCRETE MATHEMATICS: 2000 SOLVED PROBLEMS. NEW YORK: MCGRAW-HILL, 1992.

Lua MLA (9ú heag.)

LIPSCHUTZ SEYMOUR. DISCRETE MATHEMATICS: 2000 SOLVED PROBLEMS. MCGRAW-HILL, 1992.

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