Wallace, B., & Ridgeway, C. (1996). Leadership for strategic change. Institute of Personnel and Development.
Lua i Stíl Chicago (17ú heag.)Wallace, Brian, agus Chistopher Ridgeway. Leadership for Strategic Change. London: Institute of Personnel and Development, 1996.
Lua MLA (9ú heag.)Wallace, Brian, agus Chistopher Ridgeway. Leadership for Strategic Change. Institute of Personnel and Development, 1996.
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