  A Flora of Northumberland and Durham (Paperback) → Hardcover ISBN-13: 9780559300806 ISBN-10: 0559300808 ?  A Flora of Northumberland and Durham (Hardcover) → Paperback ISBN-13: 9780559300813 ISBN-10: 0559300816 ?  A Summary of the New Ferns Which Have Been Discovered or Described Since 1874 [1892] (Paperback) → Hardcover ISBN-13: 9780548592748 ISBN-10: 0548592748 ?  A Summary of the New Ferns Which Have Been Discovered or Described Since 1874 [1892] (Hardcover) → Paperback ISBN-13: 9780548911327 ISBN-10: 0548911320 ? |
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