User-agent: *
Disallow: /?referrer=google1
Disallow: /?referrer=google2
Disallow: /?referrer=google3
Disallow: /?referrer=google4
Disallow: /?referrer=google5
Disallow: /?referrer=google6
Disallow: /?referrer=google7
Disallow: /?referrer=google8
Disallow: /?referrer=google9
Disallow: /?referrer=google10
Disallow: /?referrer=google11
Disallow: /?referrer=google12
Disallow: /?referrer=google13
Disallow: /?referrer=google14
Disallow: /?referrer=google15
Disallow: /?referrer=google16
Disallow: /?referrer=google17
Disallow: /?referrer=google18
Disallow: /?referrer=google19