http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
effects of size on farm survival and success in the El Paso Valley
by Gary D. Condra and James W. Richardson.
Tx Doc number: Z, TA245.7, B873, number 1218.
Bulletin (Texas Agricultural Experiment Station) ; 1218