Gaya APA

Rock, D. (2019). Quiet Leadership: Six Steps to Transforming Performance at Work (Ed.1., cet. 3.). America: Harcourt Brace Jovanivic.

Gaya MLA

Rock, David. "Quiet Leadership: Six Steps to Transforming Performance at Work". Ed.1., cet. 3. America: Harcourt Brace Jovanivic, 2019. Text.