By Richards, Gwynne.. London : Kogan Page, 2013 . xi, 313 p. : , Includes bibliographical references and index. 23 cm.. 9780749468088 (pbk.)
]]>By Richards, Gwynne.. . xvi, 427 p. : 24 cm.. 9780749469344
]]>By Richards, Gwynne. London : Kogan Page Limited, 2018 . xiii, 513 p. : 24 cm.. 9780749479770 | 0749479779
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