Collins, S. (1990). Alcohol, Social Work and Helping. Routeldge Publisher.
Citazione stile Chigago Style (17a edizione)Collins, Stewart. Alcohol, Social Work and Helping. London: Routeldge Publisher, 1990.
Citatione MLA (9a ed.)Collins, Stewart. Alcohol, Social Work and Helping. Routeldge Publisher, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.