COVEN, W. (2012). HEIDI HECKELBECK GETS THE SNIFFLES # 12. LITTLE SIMON.
Chicago-čujuhus (17. p.)COVEN, WANDA. HEIDI HECKELBECK GETS THE SNIFFLES # 12. NEW YORK: LITTLE SIMON, 2012.
MLA-čujuhus (9. p.)COVEN, WANDA. HEIDI HECKELBECK GETS THE SNIFFLES # 12. LITTLE SIMON, 2012.
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