TY - BOOK AU - Simon,Seymour TI - Mercury SN - 0688105440 (trade) : AV - QB611 .S56 1992 U1 - 523.41 21 PY - 1992/// CY - New York PB - Morrow Junior Books KW - Project Mariner (U.S.) KW - Juvenile literature KW - sears KW - Planets KW - Mercury (Planet) N1 - Elem. School Library Collection; Wilson's Children; Wilson's Junior High School; 5.3; Follett Library Book Co; 5.3; Follett Library Resources; K-3; K-3; Follett Library Resources N2 - Describes what is known about Mercury from the photographs taken by Project Mariner ER -