The Shark Whisperer: 01 (Tristan Hunt and the Sea Guardians)
by Ellen Prager,Antonio Javier Caparo
ISBN 13: 9781938063442
Format: Paperback (288 pages) Publisher: Mighty Media Junior Readers Published: 29 May 2014
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The Oceans
by Ellen Prager,Sylvia Earle
ISBN 13: 9780071381772
Format: Illustrated (336 pages) Publisher: McGraw-Hill Education Published: 16 Sep 2001