Lua APA (7ú heag.)

Gregson, M. (1975). Circus (Corgi/ Carusel edition.). Corgi/ Carusel Book.

Lua i Stíl Chicago (17ú heag.)

Gregson, Maureen. Circus. Corgi/ Carusel edition. London: Corgi/ Carusel Book, 1975.

Lua MLA (9ú heag.)

Gregson, Maureen. Circus. Corgi/ Carusel edition. Corgi/ Carusel Book, 1975.

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