http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
compendio de geometría descriptiva para técnicos
B. Leighton Wellman ; versión del inglés, Maximo Conde.
Wellman, B. Leighton (Bernard Leighton),
Technical descriptive geometry. Spanish (Conde)
Wellman, B. Leighton (Bernard Leighton), 1908-