Hayes, D. (1997). In-service teacher development: International perspectives. Prentice Hall.
Citazione stile Chigago Style (17a edizione)Hayes, David. In-service Teacher Development: International Perspectives. Hertfordshire: Prentice Hall, 1997.
Citatione MLA (9a ed.)Hayes, David. In-service Teacher Development: International Perspectives. Prentice Hall, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.