http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings...[of] Third Colloquium on Plant Analysis and Fertilizer Problems held at Montreal, Canada, in August, 1959, in connection with the 9th International Botanical Congress
Third Colloquium on Plant Analysis and Fertilizer Problems
American Institute of Biological Sciences