Gaya APA

Lefton, R, E. et al (1972). Effective motivation through performance appraisal : dimensional appraisal strategies . New York: John Wiley & Sons.

Gaya MLA

Lefton, Robert, E.. et al. "Effective motivation through performance appraisal : dimensional appraisal strategies". New York: John Wiley & Sons, 1972. Buku/Printed Material.