Guide to the chemicals used in crop protection.
Contributors: Canada. Dept. of Agriculture. Research Branch.
Edition: 4th ed.
Series: Canada. Dept. of Agriculture. Publication -- no. 1093.; Publication (Canada. Agriculture Canada) -- 1093.
Publisher: Research Branch, Canada Dept. of Agriculture
Published: 1961
Place of publication: [Ottawa]
Language: eng
Number of pages: 386
Subjects: Pesticides.