Gardner, W. L., Avolio, B. J., & Walumbwa, F. O. (2005). Authentic leadership theory and practice: Origins, effects and development. Amsterdam : Elsevier.
Lua i Stíl Chicago (17ú heag.)Gardner, William L., Bruce J. Avolio, agus Fred O. Walumbwa. Authentic Leadership Theory and Practice: Origins, Effects and Development. Amsterdam : Elsevier, 2005.
Lua MLA (9ú heag.)Gardner, William L., et al. Authentic Leadership Theory and Practice: Origins, Effects and Development. Amsterdam : Elsevier, 2005.
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