Mass, W. (2013). Pi in the sky. New York : Little, Brown and Company.
Lua i Stíl Chicago (17ú heag.)Mass, Wendy. Pi in the Sky. New York : Little, Brown and Company, 2013.
Lua MLA (9ú heag.)Mass, Wendy. Pi in the Sky. New York : Little, Brown and Company, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.