Cita APA (7th ed.)
Van der Walt, B. J. The Liberating message. Institute of Informal Studies.
Cita Chicago (17th ed.)
Van der Walt, B. J. The Liberating Message. Potchefstroom: Institute of Informal Studies.
Cita MLA (9th ed.)
Van der Walt, B. J. The Liberating Message. Institute of Informal Studies.
Atenció: Aquestes cites poden no estar 100% correctes.