Cita APA (7th ed.)
Grudin, J. ACM Transactions on Computer-Human Interaction: December 1998 : Volume 5 : Number 4. Association for Computing Machinery.
Cita Chicago (17th ed.)
Grudin, Jonathan. ACM Transactions on Computer-Human Interaction: December 1998 : Volume 5 : Number 4. Nueva York, EUA: Association for Computing Machinery.
Cita MLA (9th ed.)
Grudin, Jonathan. ACM Transactions on Computer-Human Interaction: December 1998 : Volume 5 : Number 4. Association for Computing Machinery.
Atenció: Aquestes cites poden no estar 100% correctes.