Shehab, F. (1953). Progressive taxation: A study in the development of the progressive principle in the British income tax. Clarendon Press.

Shehab, F. Progressive Taxation: A Study in the Development of the Progressive Principle in the British Income Tax. Oxford: Clarendon Press, 1953.

Shehab, F. Progressive Taxation: A Study in the Development of the Progressive Principle in the British Income Tax. Clarendon Press, 1953.