William S. Gray, Robert C. Pooley, Fred G. Walcott & May Hill Arbuthnot.
Preprint guidebook for paths and pathfinders.
R558063. Preprint guidebook for paths and pathfinders. By William S. Gray, Robert C. Pooley, Fred G. Walcott & May Hill Arbuthnot. © 30Aug46; AA24010. Scott, Foresman and Company (PWH); 31Aug73; R558063.
Scott, Foresman and Company|PWH