Jenn, R. (2015). Introduction.
Cita Chicago (17th ed.)Jenn, Ronald. Introduction. 2015.
Cita MLA (8th ed.)Jenn, Ronald. Introduction. 2015.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)
Jenn, R. (2015). Introduction.
Cita Chicago (17th ed.)Jenn, Ronald. Introduction. 2015.
Cita MLA (8th ed.)Jenn, Ronald. Introduction. 2015.