^Stanley Gibbons Stamp Catalogue: Commonwealth and British Empire Stamps 1840-1970. 110th edition. London:
Stanley Gibbons, 2008, pp. 151-151.
ISBN0-85259-653-7
Further reading
Lehr, James C. The Postage Stamps & Cancellations of Prince Edward Island, 1814-1873. Toronto: The Unitrade Press, 1987.
ISBN0-919801-50-1