The full text of the above paper can be had from Download Colebrook-White Famous Paper at the website of Proc. R. Soc. Lond.
OTHER PAPER AUTHORED BY MR COLEBROOK
Colebrook, C.F. (1939) "Turbulent flow in pipes with particular reference to the transition region between the smooth and rough pipe laws." Proc. Institution Civil Engrs., 12, 393-422.