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CC notation « Celebrating 60 years of the ICCF
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How Purdy Won: The correspondence chess career of a world champion: Purdy, C.J.S. (Author), Larsson, Erik (Foreword): 9780725514396: Amazon.com: Books
C. J. S. Purdy: International Master, World Correspondence Chess Champion - His Life, His Games, His Writings: John Hammond, Robert Jamieson, C. J. S. Purdy, Anne Purdy, John Hanks: Amazon.com: Books
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Games of the World Correspondence Chess Championship: I-VII by Harding, T. D.: Near Fine Hardcover (1979) First Edition. | Arundel Books
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Games of World Correspondence Chess Championships 1-X (Batsford Chess Book): Harting, T. D., Harding, T. D.: 9780713453843: Amazon.com: Books
How Purdy won: the correspondence chess career of a world champion
World Chess Championship: Magnus should be reasonably happy he played out a good draw with black pieces | Sports News,The Indian Express
ICCF Brochure - International Correspondence Chess Federation
