Cita APA (7a ed.)

Hassell, J. (2002). RADIUS. O'Reilly.

Cita Chicago Style (17a ed.)

Hassell, Jonathan. RADIUS. Beijing ; Sebastopol: O'Reilly, 2002.

Cita MLA (8a ed.)

Hassell, Jonathan. RADIUS. O'Reilly, 2002.