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First Published in 1959 by Hodder & Stoughton Book 1 of 4 in this category |
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First Published in 1964 by Hodder & Stoughton Book 2 of 4 in this category |
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First Published in 1973 by Brockhampton Press Book 3 of 4 in this category |
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First Published in 1974 by Brockhampton Press Book 4 of 4 in this category |
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