The late James Parkes was a British Theologian whose post war years travels brought him to the British Mandate of Palestine.
In 1949 he authored the book WHOSE LAND? A History of the Peoples of Palestine (revised in 1970) published by Penguin Books.
The above mentioned pamphlet (32 pgs), a summary of his book, was written in 1969. The pamphlet is a PDF file. It can be downloaded and then read with Acrobat Reader.