Weeds of Canada /
Clarence Frankton and Gerald A. Mulligan ; illustrations by W.H. Wright and Ilgvars Steins.
- Rev. 1987.
- Toronto : Published by NC Press in cooperation with Agriculture Canada and the Canadian Publishing Centre, Supply and Services Canada, 1987.
- 217 p. : ill. ; 23 cm.
Includes index. "Publication 948". "Catalogue number: A43-9/1986E".