00752nam0-22002771i-450-99000376623040332120001010000376623FED01000376623(Aleph)000376623FED0100037662320001010d--------km-y0itay50------baitay-------001yy<<The >>dynamics of productive relationshipsCambridgeCambridge University Press1987.321 p.21 cmRobertson,A.F.14501ITUNINARICAUNIMARCBK99000376623040332117/310 ROB1171BFSBFSDynamics of productive relationships510468UNINAING01