David Stewart. (2009). How a Seed Grows Into a Sunflower (Amaze (Paperback)) (UK ed.). Book House.
Lua i Stíl Chicago (17ú heag.)David Stewart. How a Seed Grows Into a Sunflower (Amaze (Paperback)). UK ed. Book House, 2009.
Lua MLA (9ú heag.)David Stewart. How a Seed Grows Into a Sunflower (Amaze (Paperback)). UK ed. Book House, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.