00778nam a22002171 4500 1/13415 980914s1975 enk 001 0 eng d 0444110542 13873 DLC GR-PeUP 339.2 TI Tinbergen, Jan, 1903- Income differences: recent research/ Jan Tinbergen. Amsterdam: North-Holland publishing company, 1975. 73p.; 21 cm. Bibliographies references. Income distribution. Income. INST UNIPILB MAIN 20040709 339.2 TI 00106566 00106566 LOAN 0 2 INST UNIPILB MAIN 20040709 339.2 TI 00110738 00110738 LOAN 0 3 INST UNIPILB MAIN 20040709 339.2 TI 00116450 00116450 LOAN 0 1