http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Effects of herbicides and treatment dates on the establishment of sod-seeded red clover, birdsfoot trefoil and alfalfa
R.L. Nichols, R.A. Peters and B.G. Mullinix, Jr.
Research report (Storrs Agricultural Experiment Station) ; 78