Industrial Research Unit, Wharton School, University of Pennsylvaniac1982.<EL56-A15>
国立国会図書館
by Nancy R. Johnson ; with 1978-1982 update by David R. DeckerIndustrial Research Unit, Wharton School, University of Pennsylvania[1982]
全国の図書館
by Nancy R. Johnson ; with 1978-1979 update by Cecilia M. ValenteIndustrial Research Unit, Wharton School, University of Pennsylvania[1979]
全国の図書館
by Nancy R. JohnsonIndustrial Research Unit, Wharton School, University of Pennsylvania[1978]
全国の図書館
Industrial Research Unit, Wharton School, University of Pennsylvania
全国の図書館
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