Cita APA (7th ed.)
Langeveld, W. (1977). International Journal of political education. Elsevier Scient.Publ.
Cita Chicago (17th ed.)
Langeveld, Willem. International Journal of Political Education. Amsterdam: Elsevier Scient.Publ, 1977.
Cita MLA (9th ed.)
Langeveld, Willem. International Journal of Political Education. Elsevier Scient.Publ, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.