Schumburg, G. J. (1999). Dutch standards and guide lines for MBA in the 90s and beyond. s.n.].
Chicago Style (17th ed.) CitationSchumburg, Gunther John. Dutch Standards and Guide Lines for MBA in the 90s and Beyond. [S.l.: s.n.], 1999.
Cita MLASchumburg, Gunther John. Dutch Standards and Guide Lines for MBA in the 90s and Beyond. s.n.], 1999.
Atenció: Aquestes cites poden no estar 100% correctes.