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$24.99 Original price was: $24.99.$6.25Current price is: $6.25.
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$17.49 Original price was: $17.49.$4.37Current price is: $4.37.
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$380.00 Original price was: $380.00.$24.99Current price is: $24.99.
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$26.00 Original price was: $26.00.$7.80Current price is: $7.80.
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-64%
$69.99 Original price was: $69.99.$24.99Current price is: $24.99.
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$32.99 Original price was: $32.99.$9.90Current price is: $9.90.
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$350.00 Original price was: $350.00.$24.99Current price is: $24.99.
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$32.35 Original price was: $32.35.$9.71Current price is: $9.71.
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$19.95 Original price was: $19.95.$4.99Current price is: $4.99.
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$54.99 Original price was: $54.99.$24.99Current price is: $24.99.
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$224.99 Original price was: $224.99.$24.99Current price is: $24.99.
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$9.99 Original price was: $9.99.$2.00Current price is: $2.00.
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$17.99 Original price was: $17.99.$4.50Current price is: $4.50.
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$22.95 Original price was: $22.95.$5.74Current price is: $5.74.
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$37.95 Original price was: $37.95.$11.38Current price is: $11.38.
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$19.95 Original price was: $19.95.$4.99Current price is: $4.99.
![[Pi – Sigma] 1st Edition](https://covers.vitalsource.com/vbid/9783110193800.jpg "[Pi – Sigma] 1st Edition")
