Lua APA (7ú heag.)

DAVIS GORDON B. (1973). COMPUTER DATA PROCESSING (2ND.). MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

DAVIS GORDON B. COMPUTER DATA PROCESSING. 2ND. TOKYO: MCGRAW-HILL, 1973.

Lua MLA (9ú heag.)

DAVIS GORDON B. COMPUTER DATA PROCESSING. 2ND. MCGRAW-HILL, 1973.

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