00719cam a2200193 4500 243222920 TxAuBib 20010725120000.0 680411s1968||||||||||||||||||||||||eng|u TxAuBib Smithline, Frederick. Answers about rocks and minerals [BOOK] / Illustrated by John Hull and Kenyon Shannon. Design and editorial production by Donald D. Wolf and Margot L. Wolf. New York : Grosset & Dunlap, [1968] 60 p : illus. (part col.) ; 29 cm. Answers about 20010725. Geology Juvenile literature. Answers about.