Holtz, H. (1999). The concise guide to becoming an independent consultant. New York: John Wiley & Sons, Inc.
Stile di citazione ChicagoHoltz, Herman. The Concise Guide to Becoming an Independent Consultant. New York: John Wiley & Sons, Inc, 1999.
Citazione MLAHoltz, Herman. The Concise Guide to Becoming an Independent Consultant. New York: John Wiley & Sons, Inc, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.