Schepers, J. M. (1976). Die sielkunde as kwantitatiewe rasionele wetenskap.
Chicago Style (17th ed.) CitationSchepers, J. M. Die Sielkunde as Kwantitatiewe Rasionele Wetenskap. 1976.
MLA (9th ed.) CitationSchepers, J. M. Die Sielkunde as Kwantitatiewe Rasionele Wetenskap. 1976.
Warning: These citations may not always be 100% accurate.