User-agent: *
Disallow: /1.
Disallow: /0.
Disallow: /book/first-edition/
Disallow: /book/second-edition/
Disallow: /stable/book/first-edition/
Disallow: /stable/book/second-edition/
Disallow: /beta/book/first-edition/
Disallow: /beta/book/second-edition/
Disallow: /nightly/book/first-edition/
Disallow: /nightly/book/second-edition/