00750nam a2200205 a 4500 1/54249 211028s1986 enk 000 | eng d GR-PeUP 659.111 LAW Law, Ian. Is your advertising budget wasted? : how to measure advertising effectiveness / Ian Law. London : The Economist Intelligence Unit, 1986. 112 σ. ; 22 εκ. EIU special report ; Advertising Cost effectiveness. Διαφήμιση. Αποτελεσματικότητα κόστους. EIU special report ; 232 INST UNIPILB MAIN 20211028 659.111 LAW 00186052 00186052 LOAN 0 1 ΜΑΡΙΑ ΒΕΛ