Quassiin as a contact insecticide
By: by William B. Parker
Series: Bulletin of the U.S. Department of Agriculture -- no. 165; Bulletin of the U.S. Department of Agriculture -- no. 165.
Publisher: U.S. Dept. of Agriculture
Published: 1914
Place of publication: Washington, D.C
Language: eng
Subjects: Insecticides; Quassin
Notes: Caption title.

"December 31, 1914."

"Professional paper."