Gaya APA

SPENCER, L, M., Spencer, S, M. (1993). COMPETENCE AT WORK: Models For Superior Performance . New York: JOHN WILEY & SONS.

Gaya MLA

SPENCER, Lyle, M.., Spencer, Signe, M.. "COMPETENCE AT WORK: Models For Superior Performance". New York: JOHN WILEY & SONS, 1993. Textbook.