00540pamaa2200169 4500 0000019145 20080220090000.0 0521483514 428 MAC PE1479.B87 MAC 1997 Mackenzie English for business studies : cassette set 1 Ian MacKenzie [ audiocassette]. Cambridge: C.U.P., 1997. 1 audiocassette: 48 min.. Cambridge professional English Side 1:Units 1-9; Side2: Units 10-17 English language -- Business English