Citazione Stile APA (7a Edizione)

Penrose, G. (1988). Magic mud and other great experiments. Little Simon.

Citazione stile Chigago Style (17a edizione)

Penrose, Gordon. Magic Mud and Other Great Experiments. New York: Little Simon, 1988.

Citatione MLA (9a ed.)

Penrose, Gordon. Magic Mud and Other Great Experiments. Little Simon, 1988.