Fumigation of Plague Suspect Imports in Colombo as a Means of Controlling Plague in the Island,by ERIC C. GILLES,L.R.C.P. & S.,Dr.P.H.,D.Sc.,Port Health Officer,Colombo,Ceylon

Hirst, L.F. : " The Protection of the Interior of Ceylon from Plague, with special reference to the fumigation of plague-suspect imports." 1930 .

Gilles, Eric C. " Hydrocyanic Acid. Its Practical Use as a Routine Fumigant." Journal Royal Sanitary Institute, 58, 83. 1937.