Grahams, R., & Singer, E. J. (1993). Top class management: Lessons for effectiveness. Institute of Personnel Management.
Chicago Style (17. basım) AtıfGrahams, Richard, ve Edwin James Singer. Top Class Management: Lessons for Effectiveness. London: Institute of Personnel Management, 1993.
MLA (9th ed.) AtıfGrahams, Richard, ve Edwin James Singer. Top Class Management: Lessons for Effectiveness. Institute of Personnel Management, 1993.
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