Discoveries and inventions of the twentieth century /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
London : New York :
G. Routledge and sons, limited; E.P. Dutton and co.,
1930.
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| Edition: | 3d ed., rev. and enl. |
| Subjects: |
| Item Description: | "In the nature of a sequel to Robert Routledge's Discoveries and inventions of the nineteenth century."--Pref. to the 1st edition. |
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| Physical Description: | xxi, 476 pages : illustrations ; 22 cm. |