http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
age distribution of cotton bolls and damage from different generations of the boll weevil
J. K. Walker, J. R. Gannaway, and G. A. Niles.
Miscellaneous publication (Texas Agricultural Experiment Station) ; 1254