Citazione Stile APA (7a Edizione)

Hudgins, B. B. (1966). Problem solving in the classroom. Macmillan.

Citazione stile Chigago Style (17a edizione)

Hudgins, Bryce Byrne. Problem Solving in the Classroom. New York: Macmillan, 1966.

Citatione MLA (9a ed.)

Hudgins, Bryce Byrne. Problem Solving in the Classroom. Macmillan, 1966.