Bersin, J. (2008). The Training Measurement Book (sco.). Pfeiffer.
Chicago Style aipamenaBersin, Josh. The Training Measurement Book. sco. San Franci: Pfeiffer, 2008.
MLA aipamenaBersin, Josh. The Training Measurement Book. sco. Pfeiffer, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.