Harp, H., Collicutt, L. Herbaceous perennials for the prairie provinces. Ottawa: Minister of supply and service Canada, 1984 42 p. : ill. 0-662-13224-6.
Harp, H., Collicutt, L. Herbaceous perennials for the prairie provinces. Ottawa: Minister of supply and service Canada, 1984 42 p. : ill. 0-662-13224-6.
Harp, H., Collicutt, L. (1984) Herbaceous perennials for the prairie provinces, Ottawa: Minister of supply and service Canada 42 p. : ill. 0-662-13224-6.
Harp, H., & Collicutt, L. (1984). Herbaceous perennials for the prairie provinces. Ottawa: Minister of supply and service Canada, 42 p. : ill.
Harp H, Collicutt L. Herbaceous perennials for the prairie provinces. Ottawa: Minister of supply and service Canada; 1984. p. 42 p. : ill. ISBN: 0-662-13224-6.
