Coolidge, S. M. (1974). What Katy did at school: Susan Coolidge. Bancroft.
Lua i Stíl Chicago (17ú heag.)Coolidge, Susan M. What Katy Did at School: Susan Coolidge. London: Bancroft, 1974.
Lua MLA (8ú heag.)Coolidge, Susan M. What Katy Did at School: Susan Coolidge. Bancroft, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.