Elson, W. H., & Kelly, E. R. (1925). Child-Library Readers: Book Three. The Elson Extension Series.
Citazione stile Chigago Style (17a edizione)Elson, William H., e Edna R. Kelly. Child-Library Readers: Book Three. The Elson Extension Series. 1925.
Citatione MLA (9a ed.)Elson, William H., e Edna R. Kelly. Child-Library Readers: Book Three. The Elson Extension Series. 1925.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.