Compare The Book and Online Subcription
| Features | Book | Online |
|---|---|---|
| Printed book with CD-ROM |  |
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Similar content includes 41 chapters plus CD-ROM Appendix content |
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| Hot links (Over 3,000 links) | |
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| Online access (Not PDF) | |
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| Live bookmarks and yellow highlighting anywhere | |
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| Write private notes and publish reader contributions | |
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| Live updates | Posted Periodically | |
