Guide to the chemicals used in crop protection
By: by E. Y. Spencer.
Contributors: Martin, Hubert.
Edition: 6th ed.
Publisher: Agriculture Canada, Research Branch
Published: 1973
Place of publication: [Ottawa]
Language: eng
Number of pages: 542
Subjects: Pesticides -- Handbooks, manuals, etc.
Notes: First-4th ed. by H. Martin.