Coolidge, S. M. (1974). What Katy did at school: Susan Coolidge. Bancroft.
Chicago-Zitierstil (17. Ausg.)Coolidge, Susan M. What Katy Did at School: Susan Coolidge. London: Bancroft, 1974.
MLA-Zitierstil (8. Ausg.)Coolidge, Susan M. What Katy Did at School: Susan Coolidge. Bancroft, 1974.
警告：这些引文格式不一定是100％准确.