Black, J. A., & Champion, D. J. (1976). Methods and issues in social research. Wiley.
Citazione stile Chigago Style (17a edizione)Black, James Allen, e Dean J. Champion. Methods and Issues in Social Research. New York: Wiley, 1976.
Citatione MLA (9a ed.)Black, James Allen, e Dean J. Champion. Methods and Issues in Social Research. Wiley, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.