Shehab, F. (1953). Progressive taxation: A study in the development of the progressive principle in the British income tax. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Shehab, F. Progressive Taxation: A Study in the Development of the Progressive Principle in the British Income Tax. Oxford: Clarendon Press, 1953.
Lua MLA (9ú heag.)Shehab, F. Progressive Taxation: A Study in the Development of the Progressive Principle in the British Income Tax. Clarendon Press, 1953.