http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bol. téc. - INTA, Estac. exp. agropecu. C. Urug., Ser. prod. veg
Estación Experimental Agropecuaria Concepción del Uruguay (Argentina)
Description based on: Number 20 (published in 1983).
Some issues also have distintive titles.