APA-viite (7. p.)
Ward, H. (2007). Using their brains in science: Ideas for children aged 5 to 14. Paul Chapman.
Chicago-viite (17. p.)
Ward, Hellen. Using Their Brains in Science: Ideas for Children Aged 5 to 14. London: Paul Chapman, 2007.
MLA-viite (9. p.)
Ward, Hellen. Using Their Brains in Science: Ideas for Children Aged 5 to 14. Paul Chapman, 2007.
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