Citazione Stile APA (7a Edizione)

Hull , T. E., & By , D.. (1970). Computers and problem solving. Addison Wesley.

Citazione stile Chigago Style (17a edizione)

Hull , T. E., e Day By. Computers and Problem Solving. Canada: Addison Wesley, 1970.

Citatione MLA (9a ed.)

Hull , T. E., e Day By. Computers and Problem Solving. Addison Wesley, 1970.