The science of discovery and invention
By: by Walling Corwin and Mae Johnson Corwin.
Contributors: Corwin, Mae Johnson, joint author.
Series: The Corwin science series
Publisher: Harr Wagner publishing company
Published: 1931
Place of publication: San Francisco, Calif
Language: eng
Number of pages: 735
Subjects: Science.; Inventions.
Notes: "References" at end of each unit.