Cita APA (7a ed.)
Verlander, E. G. The Practice of Professional Consulting. Wyley : Pfeiffer.
Cita estilo Chicago (17a ed.)
Verlander, Edward George. The Practice of Professional Consulting. San Francisco, EUA: Wyley : Pfeiffer.
Cita MLA (9a ed.)
Verlander, Edward George. The Practice of Professional Consulting. Wyley : Pfeiffer.
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