RAJARAMAN & SAHASRABUDHE. (1984). COMPUTER PROGRAMMIN IN COBOL. PRENTICE HALL OF INDIA.
Lua i Stíl Chicago (17ú heag.)RAJARAMAN & SAHASRABUDHE. COMPUTER PROGRAMMIN IN COBOL. PRENTICE HALL OF INDIA, 1984.
Lua MLA (9ú heag.)RAJARAMAN & SAHASRABUDHE. COMPUTER PROGRAMMIN IN COBOL. PRENTICE HALL OF INDIA, 1984.
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