Plants collected and tested by Thomas A. Edison as possible sources of domestic rubber
Series: ARS 34 -- 74; ARS 34 -- 74.
Publisher: Agricultural Research Service, U.S. Department of Agriculture
Published: 1967
Place of publication: Washington, D.C
Language: eng
Number of pages: 191
Subjects: Rubber plants
Notes: Cover title.

"July 1967."

Includes bibliographical references (p. 189-191).