Citazione Stile APA (7a Edizione)

UNGERSON J G. (1983). HOW TO WRITE A JOB DESCRIPTION. INSTITUTE OF PERSONNEL MANAGEMENT.

Citazione stile Chigago Style (17a edizione)

UNGERSON J G. HOW TO WRITE A JOB DESCRIPTION. LONDON: INSTITUTE OF PERSONNEL MANAGEMENT, 1983.

Citatione MLA (9a ed.)

UNGERSON J G. HOW TO WRITE A JOB DESCRIPTION. INSTITUTE OF PERSONNEL MANAGEMENT, 1983.