David Stewart. (2009). How a Seed Grows Into a Sunflower (Amaze (Paperback)) (UK ed.). Book House.
Čikaški stil citiranja (17. izdanje)David Stewart. How a Seed Grows Into a Sunflower (Amaze (Paperback)). UK ed. Book House, 2009.
MLA način citiranja (9. izdanje)David Stewart. How a Seed Grows Into a Sunflower (Amaze (Paperback)). UK ed. Book House, 2009.
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