International Symposium on Poisonous Plants (7th 2005 Utah State University)
E. J. McBarron
H. E. Connor
United States. Congress. Senate. Committee on Agriculture and Forestry
United States. Extension Service. Office of Exhibits
Unknown Author
Arthur W. Sampson
International Symposium on Poisonous Plants (6th 2001 Glasgow, Scotland)
Lynn F. James
Gerald A. Mulligan
Selwyn Lawrence Everist
Orville A. Beath
L. W. Durrell
Selwyn L. Everist
Gerlad A. Mulligan
O. A. Beath
University of Illinois at Urbana-Champaign. Dept. of Landscape Architecture.
Orin Alva Stevens
Ervin M. Schmutz