Farr, R. C. (1969). Reading: What can be measuredn. International Reading Association Research Fund.
Citazione stile Chigago Style (17a edizione)Farr, Roger C. Reading: What Can Be Measuredn. Newark, Del: International Reading Association Research Fund, 1969.
Citatione MLA (9a ed.)Farr, Roger C. Reading: What Can Be Measuredn. International Reading Association Research Fund, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.