Harvey, F. (1969). Why does it rain? Harvey House.
Lua i Stíl Chicago (17ú heag.)Harvey, Fran. Why Does It Rain? New York: Harvey House, 1969.
Lua MLA (9ú heag.)Harvey, Fran. Why Does It Rain? Harvey House, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.