The Magic School Bus Blows Its Top: A Book about Volcanoes: Blows Its Top, The: A Book about Volcanoes
by Gail Herman,Joanna Cole,Bob Ostrom
ISBN 13: 9780590508353
Format: Illustrated (32 pages) Publisher: Scholastic Paperbacks Published: Feb 1996
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May (Twelve Magic Months)
by K C Kelley, Bob Ostrom
ISBN 13: 9781626873704
Format: Library Binding (24 pages) Publisher: Child's World Published: 01 Aug 2014