English Science History Indian maths

Transcribing the programme 'INDIAN MATHS' I have encountered hard to understand section. I’ve marked it by the double parentheses (()) where it should be put. I guess that it must be the title of the famous book mentioned in the given fragment, but if it is something else, then I can’t think of any words which would fit in that context either. Can you help me in finding the appropriate word or words?

Here goes the transcribed passage:

“There is a famous book 30:06 (()) in eleventh century by Said al-Andalusí – Science and the Medieval World’, and he says, yes, our number system, our trigonometry is owed to the Indians.”

Thank you in advance for your answers. Darek

PS. You can listen to the programme by putting the following line into your browser's address box: http://www.bbc.co.uk/radio4/history/inourtime/rams/inourtime...