Orel Protopopescu (Protopopescu, Orel)
English
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Metaphors and Similes. . You Can Eat
by Orel Protopopescu
Softcover, Scholastic, Incorporated, ISBN 0439445116 (0-439-44511-6)
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The Perilous Pit
by Orel O. Protopopescu, Jacqueline Chwast
Hardcover, Simon & Schuster Children's Publishing, ISBN 0671769103 (0-671-76910-3)
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Two Sticks
by Anne Wilsdorf, Orel Protopopescu
Hardcover, Farrar, Straus & Giroux, ISBN 0374380228 (0-374-38022-8)
Chinese