APA-referens (7:e uppl.)

SUBRAMANYAM A. (1982). SYSTEMS ANALYSIS AND DATA PROCESSING (2.). A H WHEELER & CO.

Chicago-referens (17:e uppl.)

SUBRAMANYAM A. SYSTEMS ANALYSIS AND DATA PROCESSING. 2. ALLAHABAD: A H WHEELER & CO, 1982.

MLA-referens (9:e uppl.)

SUBRAMANYAM A. SYSTEMS ANALYSIS AND DATA PROCESSING. 2. A H WHEELER & CO, 1982.