1. T L Heath, A history of Greek mathematics I (Oxford, 1931).
2. I Thomas, Selections illustrating the history of Greek mathematics : Vol 1 (From Thales to Euclid) (London, 1967).
3. I Thomas, Greek mathematical works (London, 1939).

Articles:

4. Chen, Tzer-lin Proof of the impossibility of trisecting an angle with Euclidean tools, Math. Mag. 39 (1966), 239-241.
5. J Delattre and R Bkouche, Why ruler and compass?, in History of Mathematics : History of Problems (Paris, 1997), 89-113.

The URL of this page is:
http://www-history.mcs.st-andrews.ac.uk/HistTopics/References/Trisecting_an_angle.html