ELDIN PETER. (2003). THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. GRANDREAMS BOOKS LIMITED.
Chicago-viite (17. p.)ELDIN PETER. THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. UK: GRANDREAMS BOOKS LIMITED, 2003.
MLA-viite (9. p.)ELDIN PETER. THE WORLD OF AMAZING FACTS FANTASTIC FACTS AND QUESTIONS AND ANSWERS. GRANDREAMS BOOKS LIMITED, 2003.
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