Cita APA (7th ed.)
Osborn, M. (1982). Speaking in public. Houghton Mifflin.
Cita Chicago (17th ed.)
Osborn, Michael. Speaking in Public. Boston: Houghton Mifflin, 1982.
Cita MLA (9th ed.)
Osborn, Michael. Speaking in Public. Houghton Mifflin, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.