FAVRETTO, R. (2010). GIGGLERS: LEONARDO'S SPOT OF TROUBLE. BLAKE EDUCATION.
Lua i Stíl Chicago (17ú heag.)FAVRETTO, ROBERT. GIGGLERS: LEONARDO'S SPOT OF TROUBLE. CLAYTON SOUTH: BLAKE EDUCATION, 2010.
Lua MLA (9ú heag.)FAVRETTO, ROBERT. GIGGLERS: LEONARDO'S SPOT OF TROUBLE. BLAKE EDUCATION, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.