(2010). Peak performers: How to get the best from yourself, your co-workers, your staff. Franklin Lakes, NJ: Career Press.
Παραπομπή Chicago StylePeak Performers: How to Get the Best From Yourself, Your Co-workers, Your Staff. Franklin Lakes, NJ: Career Press, 2010.
Παραπομπή MLAPeak Performers: How to Get the Best From Yourself, Your Co-workers, Your Staff. Franklin Lakes, NJ: Career Press, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.