WHITTEN, J. L. .. a. (1986). System Analysis And Design Methods Jeffrey L. Whitten; Lonie D. Bentley; Thomas I. M. Ho. Timor Mirror/Mosby.
Lua i Stíl Chicago (17ú heag.)WHITTEN, Jeffrey L ...[et al.]. System Analysis And Design Methods Jeffrey L. Whitten; Lonie D. Bentley; Thomas I. M. Ho. Timor Mirror/Mosby, 1986.
Lua MLA (8ú heag.)WHITTEN, Jeffrey L ...[et al.]. System Analysis And Design Methods Jeffrey L. Whitten; Lonie D. Bentley; Thomas I. M. Ho. Timor Mirror/Mosby, 1986.
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