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SPENCER, Lyle M., SPENCER, Signe M.. (1993). COMPETENCE AT WORK: Models for Superior Performance . New York: JOHN WILEY & SON.

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SPENCER, Lyle M., SPENCER, Signe M.. COMPETENCE AT WORK: Models for Superior Performance. New York: JOHN WILEY & SON, 1993. Text.

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SPENCER, Lyle M., SPENCER, Signe M.. COMPETENCE AT WORK: Models for Superior Performance. New York: JOHN WILEY & SON, 1993. Text.

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SPENCER, Lyle M., SPENCER, Signe M.. COMPETENCE AT WORK: Models for Superior Performance. New York: JOHN WILEY & SON, 1993. Print.