Watkins, W. Targets and Backgrounds: Characterization and Representation III. SPIE Digital Library.
Cita Chicago (17th ed.)Watkins, Wendell. Targets and Backgrounds: Characterization and Representation III. SPIE Digital Library.
Cita MLA (8th ed.)Watkins, Wendell. Targets and Backgrounds: Characterization and Representation III. SPIE Digital Library.
Atenció: Aquestes cites poden no estar 100% correctes.