official Captain Hydro water conservation workbook
By: story and original lessons by Bob Johnson ; revisions and new lessons by Marilynne Homitz ; illustrations by Ben Akutagawa.
Contributors: Homitz, Marilynne.; Akutagawa, Ben.; East Bay Municipal Utility District (Calif.)
Publisher: East Bay Municipal Utility District
Published: 1982
Place of publication: Oakland, CA
Language: eng
Number of pages: 38
Subjects: Water conservation -- Juvenile literature
Genres: Juvenile literature.