R. L. Stine. (1999). Goosebumps Series 2000: Jekyll and Heidi No. 14. Scholastic Inc.
Lua i Stíl Chicago (17ú heag.)R. L. Stine. Goosebumps Series 2000: Jekyll and Heidi No. 14. New York: Scholastic Inc, 1999.
Lua MLA (9ú heag.)R. L. Stine. Goosebumps Series 2000: Jekyll and Heidi No. 14. Scholastic Inc, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.