Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.