Lobel, A. (1976). Frog and toad all year. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Lobel, Arnold. Frog and Toad All Year. New York: Harper & Row, 1976.
Lua MLA (8ú heag.)Lobel, Arnold. Frog and Toad All Year. Harper & Row, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.