Production of drug and condiment plants
By: by A.F. Sievers
Series: Farmers' bulletin (United States. Department of Agriculture) -- no. 1999
Publisher: U.S. Dept. of Agriculture
Published: 1957
Place of publication: Washington, D.C
Language: eng
Number of pages: 99
Subjects: Medicinal plants; Herbs
Notes: Supersedes Farmers' bulletin no. 663: Drug plants under cultivation.

"This publication was reviewed in August 1957 and approved for reprinting.  Issued December 1948."