Etexts:
- Multi-format (HTML, EPUB, Kindle, Text) at Project Gutenberg
Available at Amazon.com:
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- Thrift Paperback edition, unabridged (Dover Pubns, 1996).
- Audio CD edition, abridged, read by Neville Jason (Naxos Audio Books, 1996).
All links verified on or after December 1, 2019