https://openlibrary.org/books/OL28508317M.opds Encyclopedia of Planet Earth 2022-12-07T08:31:48Z Anna Claybourne https://openlibrary.org/authors/OL1392098A/Anna_Claybourne Gillian Doherty https://openlibrary.org/authors/OL2704284A/Gillian_Doherty Usborne Publishing, Limited 2013 160 eng https://openlibrary.org/books/OL28508317M https://archive.org/details/encyclopaediaofp0000clay urn:ISBN:9781409566243 839316156