POPULAR SCIENCE LIBRARY. v. 5. The story of mechanics, by A. Russell Bond. With additions by Albert A. Hopkins.
POPULAR SCIENCE LIBRARY. © P. F. Collier & Son Corp. (PWH) v. 5. The story of mechanics, by A. Russell Bond. With additions by Albert A. Hopkins. © on new text, illus. & revisions; 30Dec30; A33273. 24Feb58; R209462.
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