Coolidge, S. (1975). What Katy did next: Abridged / Susan Coolidge. Purnell.
Lua i Stíl Chicago (17ú heag.)Coolidge, Susan. What Katy Did Next: Abridged / Susan Coolidge. Maidenhead: Purnell, 1975.
Lua MLA (8ú heag.)Coolidge, Susan. What Katy Did Next: Abridged / Susan Coolidge. Purnell, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.