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document.write('<option value="http://www.harpercollins.com/features/pratchettbooks/description.aspx?isbn=9780061161704">Unseen Academicals');
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document.write('<option value="http://www.harpercollins.com/features/pratchettbooks/description.aspx?isbn=9780061370502">The Wit and Wisdom of');
document.write('<option value="http://www.harpercollins.com/features/pratchettbooks/description.aspx?isbn=9780061370502">&nbsp;&nbsp;Discworld');
document.write('<option value="http://www.harpercollins.com/features/pratchettbooks/description.aspx?isbn=9780060541910">Johnny and the Bomb');
document.write('<option value="http://www.harpercollins.com/features/pratchettbooks/description.aspx?isbn=9780061433023">Nation');
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document.write('<option value="http://www.harpercollins.com/features/pratchettBooks/description.aspx?isbn=9780060541873">Only You Can Save Mankind');
document.write('<option value="http://www.harpercollins.com/features/pratchettBooks/description.aspx?isbn=9780060758271">The Art of Discworld');
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document.write('<option value="http://www.harpercollins.com/features/pratchettBooks/description.aspx?isbn=9780061020698">Equal Rites');
document.write('<option value="http://www.harpercollins.com/features/pratchettBooks/description.aspx?isbn=9780061020704">The Light Fantastic');
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