1989 Task Card Series 23: Rocks and Minerals for Grades 7-12 (P) Conceived and Written by Doris Metcalf & Ron Marson / Illustrated by Peg Marson ***ISBN-13: 9780941008235 ***Condition: Good Used--ex-library, has school marking on edge ***Pages: 84 @J1.1;0>sci 11x8.5 ASKU#v