Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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