APA (7th ed.) Citation

Coolidge, S. What Katy did next. Peter Haddock Publishing.

Chicago Style (17th ed.) Citation

Coolidge, Susan. What Katy Did Next. UK: Peter Haddock Publishing.

MLA (9th ed.) Citation

Coolidge, Susan. What Katy Did Next. Peter Haddock Publishing.

Warning: These citations may not always be 100% accurate.