Cita APA (7a ed.)

Gunawardena, C. N. (1995). Social presence theory and implications for interaction and collaborative learning in computer conferences. [s.n.].

Cita Chicago Style (17a ed.)

Gunawardena, Charlotte N. Social Presence Theory and Implications for Interaction and Collaborative Learning in Computer Conferences. [S.l.]: [s.n.], 1995.

Cita MLA (9a ed.)

Gunawardena, Charlotte N. Social Presence Theory and Implications for Interaction and Collaborative Learning in Computer Conferences. [s.n.], 1995.