Cita APA (7th ed.)
Ruddock, R. (1980). Perspectives on adult education: Department of adult ..........
Cita Chicago (17th ed.)
Ruddock, Ralph. Perspectives on Adult Education: Department of Adult .......... Direct Printers, 1980.
Cita MLA (9th ed.)
Ruddock, Ralph. Perspectives on Adult Education: Department of Adult .......... 1980.
Atenció: Aquestes cites poden no estar 100% correctes.