Langdon, M. R., & Rankin, K. (1956). A book of joy: An anthology of prose and poetry designed for teachers of young children. Ginn.
Lua i Stíl Chicago (17ú heag.)Langdon, Mary Ramon, agus Katherine Rankin. A Book of Joy: An Anthology of Prose and Poetry Designed for Teachers of Young Children. Boston: Ginn, 1956.
Lua MLA (8ú heag.)Langdon, Mary Ramon, agus Katherine Rankin. A Book of Joy: An Anthology of Prose and Poetry Designed for Teachers of Young Children. Ginn, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.