http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
from the 4Ps-- product, price, promotion, place-- of traditional marketing management to the 30Rs-- the thirty relationships- of the new marketing paradigm
Περιλαμβάνει βιβλιογραφικές παραπομπές και ευρετήριο.