Ruchlis, H. (1963). Discovering scientific method with science puzzle pictures. Harper and Row.
Citazione stile Chigago Style (17a edizione)Ruchlis, Hyman. Discovering Scientific Method with Science Puzzle Pictures. New York: Harper and Row, 1963.
Citatione MLA (9a ed.)Ruchlis, Hyman. Discovering Scientific Method with Science Puzzle Pictures. Harper and Row, 1963.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.