DAVID AND GLOVER, P. (2007). EASY LEARNING COUNTING PRACTICE AGE 5 - 7.
Lua i Stíl Chicago (17ú heag.)DAVID AND GLOVER, PENNY. EASY LEARNING COUNTING PRACTICE AGE 5 - 7. 2007.
Lua MLA (9ú heag.)DAVID AND GLOVER, PENNY. EASY LEARNING COUNTING PRACTICE AGE 5 - 7. 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.