http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
FACTORS hidden change -- Hidden Factors in technological change. -- Ed.:Edward Semper,Philip Coggin [u.a.] -- Oxford [usw.],Frankfurt:Pergamon Pr. -- (1976). XIII,252 S.mit Fig. 8° -- 1977:B 63. -- Ko.°