Lua APA (7ú heag.)

Cronin, D., & Lewin, B. (2010). A barnyard collection: Click, clack, moo and more. Atheneum Books for Young Readers.

Lua i Stíl Chicago (17ú heag.)

Cronin, Doreen, agus Betsy Lewin. A Barnyard Collection: Click, Clack, Moo and More. New York: Atheneum Books for Young Readers, 2010.

Lua MLA (8ú heag.)

Cronin, Doreen, agus Betsy Lewin. A Barnyard Collection: Click, Clack, Moo and More. Atheneum Books for Young Readers, 2010.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.