Kovitz, B. L. (1999). Practical software requirements: A manual of content and style. Manning.
Lua i Stíl Chicago (17ú heag.)Kovitz, Benjamin L. Practical Software Requirements: A Manual of Content and Style. Greenwich, CT: Manning, 1999.
Lua MLA (8ú heag.)Kovitz, Benjamin L. Practical Software Requirements: A Manual of Content and Style. Manning, 1999.
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