00751nam0-22002771i-450-99000668084040332120001010000668084FED01000668084(Aleph)000668084FED0100066808420001010d--------km-y0itay50------baitay-------001yyBarriers to entrya corporate-strategy perspectiveGeorge S. YipLexingtonLexington Books1982XVI, 222 p., 23 cmYip,George S.107327ITUNINARICAUNIMARCBK990006680840403321VI E 19324817FSPBCFSPBCBarriers to entry618110UNINAGEN01