Literatür

Q#, Banknotes and Banking in the Isle of Man, Ernest Quarmby

Spink & Son London, United Kingdom

Alt başlık: A guide for historians and collectors

Baskı: 2nd edition

Yıl: 1994

Quiggi#, A Survey of Primitive Money, A. Hingston Quiggin

Methuen London, United Kingdom

Alt başlık: The Beginnings of Currency

Yıl: 1949