Ontario weeds
Subtitle: descriptions, illustrations and keys to their identification
By: by J.F. Alex and C.M. Switzer.
Contributors: Switzer, C. M., 1929-; Montgomery, F. H. 1902-
Series: Publication / Ministry of Agriculture and Food, Ontario ;
Publisher: Ministry of Agriculture and Food, Ont.
Published: 1976
Place of publication: [Ottawa]
Language: eng
Number of pages: 200
Subjects: Weeds -- Ontario -- Identification.
Notes: Rev. ed. of: Ontario weeds / by F.H. Montgomery and C.M. Switzer.
Includes index.
"Agdex 640."
"RV-5-76-30M"--P. [4] of cover.