http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
4 pages ., v-viii, 257 pages : illustrations, diagrams ; 24 cm.
"First published, February, 1930 ... Second edition, March, 1946."
"Projects, with operation sheets": pages [47]-223.