SUBRAMANYAM & MENON. (1984). SYSTEMS ANALYSIS AND DATA PROCESSING. A.H. WHEELER & CO.
Lua i Stíl Chicago (17ú heag.)SUBRAMANYAM & MENON. SYSTEMS ANALYSIS AND DATA PROCESSING. ALLAHABAD: A.H. WHEELER & CO, 1984.
Lua MLA (9ú heag.)SUBRAMANYAM & MENON. SYSTEMS ANALYSIS AND DATA PROCESSING. A.H. WHEELER & CO, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.