Cita APA (7th ed.)

Williamson, B. H. (1996). The ASTD trainer's sourcebook : Supervision: Create your own training program. McGraw-Hill.

Cita Chicago (17th ed.)

Williamson, Bobette Hays. The ASTD Trainer's Sourcebook : Supervision: Create Your Own Training Program. New York: McGraw-Hill, 1996.

Cita MLA (9th ed.)

Williamson, Bobette Hays. The ASTD Trainer's Sourcebook : Supervision: Create Your Own Training Program. McGraw-Hill, 1996.