00765cam a2200253 4500 306321 BD-DhUL 20140819165445.0 740227s1973 enka 001 0 eng 73002778 GB*** 0471077100 0471077135 (pbk.) DLC DLC DLC BD-DhUL HB135 .B54 510 BLE Black, John, 1931- Essential mathematics for economists [by] J. Black [and] J. F. Bradley. London, New York, J. Wiley [c1973] x, 268 p. illus. 24 cm. Economics, Mathematical. Bradley, J. F. (James F.), joint author. 7 cbc orignew 2 ocip 19 y-gencatlg ddc BK 4145 4145 0 0 ddc 0 510_000000000000000_BLE 0 NFIC 7426 DUSL DUSL GEN 2014-08-19 Gift 510 BLE A223140 2014-08-19 2014-08-19 BK