Citazione Stile APA (7a Edizione)
ebrary, Inc, Powell, S., & Green, H. (2007). The doctorate worldwide. Society for Research into Higher Education & Open University Press.
Citazione stile Chigago Style (17a edizione)
ebrary, Inc, Stuart Powell, e Howard Green. The Doctorate Worldwide. Maidenhead: Society for Research into Higher Education & Open University Press, 2007.
Citatione MLA (9a ed.)
ebrary, Inc, et al. The Doctorate Worldwide. Society for Research into Higher Education & Open University Press, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.