HARDWICK, H. (2003). WORDS ARE IMPORTANT- BOOK 4 (1st.). WHEELER PUBLISHING.
Chicago-viite (17. p.)HARDWICK, H.C. WORDS ARE IMPORTANT- BOOK 4. 1st. ALLAHABAD: WHEELER PUBLISHING, 2003.
MLA-viite (9. p.)HARDWICK, H.C. WORDS ARE IMPORTANT- BOOK 4. 1st. WHEELER PUBLISHING, 2003.
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