00872nam a22002411 4500 1/9645 961211s1978 enk 001 0eng d 0297768980 0297768999 9977 DLC GR-PeUP 330 LI Lipsey, Richard G., 1928- An introduction to positive economics / Richard G. Lipsey. 4th ed. London : Weidenfeld and Nicolson, 1978. xx, 875 p.: fig.; 24 cm. Includes index. Economics. INST UNIPILB MAIN 20040709 330 LI 00100373 00100373 LOAN 0 3 INST UNIPILB MAIN 20040709 330 LI 00104356 00104356 LOAN 0 4 INST UNIPILB MAIN 20040709 330 LI 00107317 00107317 LOAN 0 2 INST UNIPILB MAIN 20040709 330 LI 00108895 00108895 LOAN 0 1