William S. Gray, Robert C. Pooley & Fred G. Walcott.
Think-and-do book to accompany Wonders and workers.
R586531. Think-and-do book to accompany Wonders and workers. By William S. Gray, Robert C. Pooley & Fred G. Walcott. © 13Sep47; AA63202. Scott, Foresman and Company (PWH); 1Oct74; R586531.
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