Links to sites

the links to the sites and books i will be using in my biography

http://en.wikipedia.org/wiki/Jeremiah_Horrocks

http://www.bbc.co.uk/dna/h2g2/A2769041

http://adsabs.harvard.edu/full/1990QJRAS..31..333C book

http://articles.adsabs.harvard.edu/full/1914Obs....37..335B book