TY - BOOK ID - 130017943 TI - Elements of pure economics or the theory of social wealth AU - Walras, Léon AU - Jaffé, William PY - 1954 PB - London George Allen and Unwin DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:130017943 AB - ER -