Gage, N. (1972). Teacher effectiveness and teacher education: The search for a scientific basis. Pacific Books.
Citazione stile Chigago Style (17a edizione)Gage, N.L. Teacher Effectiveness and Teacher Education: The Search for a Scientific Basis. Palo Alto, CA: Pacific Books, 1972.
Citatione MLA (9a ed.)Gage, N.L. Teacher Effectiveness and Teacher Education: The Search for a Scientific Basis. Pacific Books, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.