Gaya APA
SPENCER, L, M., SPENCER, S, M. (1993).
Competence At Work : Models for Superior Performance .
Canada:
John Wiley and Sons.
Gaya MLA
SPENCER, Lyle, M.., SPENCER, Signe, M..
"Competence At Work : Models for Superior Performance".
Canada:
John Wiley and Sons,
1993.
Text.