Leffingwell, D. W. (2007). Managing Software Requirements: A use case approach (2 edition.).
Chicago Edition CitationLeffingwell, Dean; Wildrig. Managing Software Requirements: A Use Case Approach. 2 edition. Pearson Education, 2007.
MLA Edition CitationLeffingwell, Dean; Wildrig. Managing Software Requirements: A Use Case Approach. 2 edition. 2007.
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