Citazione Stile APA (7a Edizione)
Hilgert, R. L., & Leonard, E. C. (1998). Supervision: Concepts and practices of management. South-Western College.
Citazione stile Chigago Style (17a edizione)
Hilgert, Raymond L., e Edwin C. Leonard. Supervision: Concepts and Practices of Management. Ohio: South-Western College, 1998.
Citatione MLA (9a ed.)
Hilgert, Raymond L., e Edwin C. Leonard. Supervision: Concepts and Practices of Management. South-Western College, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.