Cita APA (7th ed.)
ebrary, Inc, Powell, S., & Green, H. (2007). The doctorate worldwide. Society for Research into Higher Education & Open University Press.
Cita Chicago (17th ed.)
ebrary, Inc, Stuart Powell, i Howard Green. The Doctorate Worldwide. Maidenhead: Society for Research into Higher Education & Open University Press, 2007.
Cita MLA (9th ed.)
ebrary, Inc, et al. The Doctorate Worldwide. Society for Research into Higher Education & Open University Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.