O'Gordon, G. (1968). Modern trends in mental health and subnormality. Butterworths.
Citazione stile Chigago Style (17a edizione)O'Gordon, Gerald. Modern Trends in Mental Health and Subnormality. London: Butterworths, 1968.
Citatione MLA (9a ed.)O'Gordon, Gerald. Modern Trends in Mental Health and Subnormality. Butterworths, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.