BURNFORD , H. (1995). QUESTIONS AND ANSWERS INVENTIONS. BLUE BANANA BOOKS LTD.
Chicago-čujuhus (17. p.)BURNFORD , HELEN. QUESTIONS AND ANSWERS INVENTIONS. CHINA: BLUE BANANA BOOKS LTD, 1995.
MLA-čujuhus (9. p.)BURNFORD , HELEN. QUESTIONS AND ANSWERS INVENTIONS. BLUE BANANA BOOKS LTD, 1995.
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