Coolidge, S. (1986). What Katy did at school: Susan Coolidge. Ill. by Trevor Parkin. Macdonald Purnell.
Lua i Stíl Chicago (17ú heag.)Coolidge, Susan. What Katy Did at School: Susan Coolidge. Ill. by Trevor Parkin. London: Macdonald Purnell, 1986.
Lua MLA (8ú heag.)Coolidge, Susan. What Katy Did at School: Susan Coolidge. Ill. by Trevor Parkin. Macdonald Purnell, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.