Chambers Publishers and its competitor George G. Harrap and Company ( founded : 1901 ) .
Chambers Harrap Publishers ( Chambers Harrap Publishers Ltd ) is a reference publisher formerly based in Edinburgh , Scotland , which held the property rights of the venerable W.R.
Chambers Harrap Publishers Ltd   and Chambers Harrap Publishers ' competitor George G. Harrap and Company ( founded : 1901 ) .
Chambers Harrap Publishers ( Chambers Harrap Publishers Ltd ) is a reference publisher formerly based in Edinburgh , Scotland , which held the property rights of the venerable W.R.