Ditchfield, Christin Oil / Christin Ditchfield. - New York : Children`s Press, 2002. - 47 p. : col. ill.: 21 cm. - A True book . Lex: 890 English ISBN: 0-516-22343-7 Subjects--Topical Terms: Petroleum--Juvenile literaturePetroleum LC Class. No.: 553.282 D61o c2002