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Cover of Stratigraphic atlas of North and Central America, prepared by the Exploration Dept. of Shell Oil Co., Houston, Texas.  edited by T.D. Cook [and others]

Stratigraphic atlas of North and Central America, prepared by the Exploration Dept. of Shell Oil Co., Houston, Texas. edited by T.D. Cook [and others]

by S. Milner

Writing a summary for young readers…

For young readers

Book data: Open Library